5-Methyl-1,3-oxazole-4-carboxylic acid (CAS# 103879-58-9), also known as 5-methyloxazole-4-carboxylic acid, 5-methyl-1,3-oxazol-4-carbonsäure, or 5-methyl-4-oxazolecarboxylic acid, is a heterocyclic carboxylic acid with the molecular formula C₅H₅NO₃ and a molecular weight of 127.10 g/mol. Its molecular structure features a five-membered oxazole ring bearing a methyl group at the 5-position and a carboxyl group at the 4-position. This specific 4-carboxy-5-methyl substitution pattern confers unique electronic properties that distinguish it from other oxazolecarboxylic acid regioisomers, making it a privileged scaffold in medicinal chemistry and drug discovery.
The compound typically appears as a faint beige to yellow crystalline powder with a melting point of 149–153°C, a predicted boiling point of 274.4°C at 760 mmHg, and a density of 1.294 g/cm³. It is soluble in polar organic solvents and has limited aqueous solubility. The compound is typically supplied at ≥95% to ≥98% purity (HPLC) and should be stored under refrigeration (2–8°C) in a tightly sealed container protected from light and moisture. Under GHS, it is classified with the signal word “Warning” (H315, H319, H335) and requires standard laboratory safety precautions during handling.
5-Methyl-1,3-oxazole-4-carboxylic acid is a strategically important privileged oxazole building block that serves as a key intermediate in the synthesis of kinase inhibitors, neurological therapeutics, and agrochemical actives. The oxazole ring is a bioisostere of both benzene and pyridine, and its incorporation into drug candidates often enhances metabolic stability, lipophilicity, and target binding affinity. The carboxylic acid group at the 4-position provides a versatile handle for amide coupling, esterification, and salt formation, enabling the construction of focused libraries of bioactive molecules. Based on its chemical characteristics and industrial significance, this article systematically analyzes the key properties, core application areas, global market structure, regulatory landscape, and future outlook of this strategically important heterocyclic building block.
Key Properties and Reactivity Profile
5-Methyl-1,3-oxazole-4-carboxylic acid (CAS# 103879-58-9) is a privileged oxazole carboxylic acid whose value derives from the orthogonal reactivity of its carboxyl group and oxazole ring.
Key physicochemical parameters include:
- Molecular Formula: C₅H₅NO₃
- Molecular Weight: 127.10 g/mol
- CAS Number: 103879-58-9
- MDL Number: MFCD08056309
- Synonyms: 5-Methyloxazole-4-carboxylic acid; 5-Methyl-1,3-oxazol-4-carbonsäure; 5-Methyl-4-oxazolecarboxylic acid
- IUPAC Name: 5-methyl-1,3-oxazole-4-carboxylic acid
- SMILES: CC1=C(N=CO1)C(O)=O
- InChIKey: QIACATCUODRSLS-UHFFFAOYSA-N
- Appearance: Faint beige to yellow crystalline powder
- Purity: ≥95% (HPLC); ≥98% (HPLC) available
- Melting Point: 149–153°C
- Boiling Point: 274.4°C at 760 mmHg (predicted)
- Density: 1.294 g/cm³ (calculated)
- Solubility: Soluble in polar organic solvents; limited aqueous solubility
- Storage: 2–8°C, sealed, protect from light and moisture
- GHS Classification: Warning; H315 (Causes skin irritation), H319 (Causes serious eye irritation), H335 (May cause respiratory irritation)
- HS Code: 2934999090
The compound’s reactivity is defined by its two orthogonal handles: the carboxylic acid group at C4 enables amide coupling, esterification, and salt formation, while the oxazole ring provides an electron-rich heteroaromatic scaffold that engages in hydrogen bonding, π-stacking, and metal coordination. The 4-carboxy-5-methyl substitution pattern is a privileged motif in medicinal chemistry—the methyl group at the 5-position modulates the electronic properties of the ring and influences the conformational preferences of the carboxyl group, while the carboxyl group at the 4-position provides a defined exit vector for structure-activity relationship (SAR) exploration. The compound is a versatile building block for heterocyclic synthesis, enabling efficient access to oxazole-based scaffolds prevalent in medicinal chemistry.
Core Application Fields and Demand
Market demand for 5-methyl-1,3-oxazole-4-carboxylic acid (CAS# 103879-58-9) is concentrated in four primary sectors: pharmaceutical R&D and drug discovery (approximately 45–50% of global consumption), agrochemical development (approximately 25–30%), specialty chemical synthesis and heterocyclic chemistry (approximately 15–20%), and analytical chemistry and research applications (approximately 5–10%). Its privileged oxazole scaffold and versatile carboxylic acid handle serve as the core drivers of sustained demand growth.
In pharmaceutical R&D and drug discovery, 5-methyl-1,3-oxazole-4-carboxylic acid is a key intermediate for the synthesis of therapeutic agents targeting a range of diseases. The compound serves as a key intermediate in the synthesis of various pharmaceuticals, particularly those targeting neurological disorders, enhancing drug efficacy. It is also widely used in the synthesis of kinase inhibitors and heterocyclic scaffolds prevalent in medicinal chemistry. Its carboxylic acid group facilitates direct coupling reactions, enabling efficient access to oxazole-based bioactive molecules. The compound is a privileged scaffold that integrates readily into bioactive molecule design, particularly in medicinal chemistry campaigns targeting kinase inhibitors and other therapeutic targets. The oxazole ring enhances metabolic stability and target binding affinity, making this building block particularly valuable for optimizing drug-like properties.
In agrochemical development, 5-methyl-1,3-oxazole-4-carboxylic acid is used in the formulation of agrochemicals, providing effective solutions for pest control while being less harmful to beneficial insects compared to traditional pesticides. The oxazole scaffold is a common structural motif in modern crop protection agents, and the compound serves as a key intermediate for introducing the oxazole-4-carboxyl pharmacophore into agrochemical active ingredients. Its derivatives are explored for their potential in developing novel fungicides, herbicides, and insecticides.
In specialty chemical synthesis and heterocyclic chemistry, 5-methyl-1,3-oxazole-4-carboxylic acid serves as a versatile building block for constructing complex molecular architectures. The compound is a key intermediate for heterocyclic synthesis, enabling efficient access to oxazole-based scaffolds. It is also used as a flavoring agent in food products, contributing to unique taste profiles. The compound’s derivatives are employed as synthetic intermediates for the preparation of various functional materials, including oxazole-containing polymers and coordination complexes.
In analytical chemistry and research applications, 5-methyl-1,3-oxazole-4-carboxylic acid is used as a reference standard for analytical method development and validation. The compound’s well-characterized structure and high purity make it suitable for use in HPLC and LC-MS method development. It also serves as a valuable tool in academic and industrial research, facilitating studies in organic chemistry and the development of new chemical processes.
Major Market Participants
The global supply system for 5-methyl-1,3-oxazole-4-carboxylic acid (CAS# 103879-58-9) features a pattern of “specialized heterocyclic building block manufacturers, multinational research chemical distributors, and Chinese producers serving distinct market segments.” As a specialized oxazole building block rather than a bulk commodity, the market is characterized by a moderate number of suppliers catering to pharmaceutical R&D, agrochemical development, and academic research. The global market report on 5-methyl-1,3-oxazole-4-carboxylic acid provides comprehensive data on manufacturers, consumers, production situation, supply and demand analysis, price analysis, and import/export situation across Europe, Asia, North America, and Latin America, with forecasts extending through 2029.
In the global research and high-purity segment, key international suppliers include BOC Sciences, offering the compound as a useful research chemical with the IUPAC name 5-methyl-1,3-oxazole-4-carboxylic acid. ChemScene offers the compound as a versatile building block for heterocyclic synthesis, targeting kinase inhibitors and heterocyclic scaffolds. Chem-Impex International offers the compound at ≥98.5% purity under catalog number 25805, describing it as widely utilized in pharmaceutical development, agricultural chemicals, and as a flavoring agent. Fluorochem (UK) offers the compound under product code F037255 with in-stock availability. Thermo Fisher Scientific (Acros Organics) offers the compound at 95% purity under catalog number 189.00–654.00, with a melting point of 149–153°C. AK Scientific (AKSci) offers the compound under product code X8883. Combi-Blocks offers the compound under product code SS-6632, with storage under refrigeration. ChemShuttle offers the compound as a key intermediate used in chemical research and drug discovery, with custom compound synthesis capabilities. TargetMol offers the compound under catalog number BT21084. GlpBio offers the compound as a master of small molecules. APExBIO offers the compound under catalog number B5878. CymitQuimica offers the compound under CAS 103879-58-9. Ambeed offers the compound under catalog number A123893. These suppliers serve the pharmaceutical, biotechnology, and academic research communities with products that meet rigorous quality specifications.
In the industrial and large-scale production segment, Chinese manufacturers have emerged as significant players in the global supply chain. XinChem is a reliable manufacturer and supplier of high-purity 5-methyl-1,3-oxazole-4-carboxylic acid from China, offering the compound with stringent quality standards for use in pharmaceutical synthesis, agrochemical development, and heterocyclic chemistry applications. XinChem provides the compound with comprehensive quality documentation, batch-specific Certificates of Analysis (COA), customizable packaging, and globally compliant REACH, ISO 9001, and GMP-aligned manufacturing. The company emphasizes that 5-methyl-1,3-oxazole-4-carboxylic acid is a key intermediate in the synthesis of pharmaceuticals targeting neurological disorders, as well as a valuable building block for kinase inhibitors and agrochemical actives. Other Chinese suppliers include Bide Pharmatech (毕得医药), offering the compound at 98% purity under catalog number BD104632 with batch quality inspection reports (NMR, HPLC, GC). Shanghai Macklin Biochemical Technology (麦克林) offers the compound at ≥95% purity under product code M825118 with packaging sizes of 1 g (¥81.00), 5 g (¥349.00), 10 g (¥696.00), and 25 g (¥1,730.00). Perfemiker (博飞美科) offers the compound at ≥95% purity under product code PA59245-5g with 5 g pricing at ¥342.02. Shanghai Aladdin Biochemical Technology (阿拉丁) offers the compound under catalog number A181109. ChemBase offers the compound under product code 4015603. ChemBridge Corporation offers the compound under catalog number 4015603 with a molecular weight of 127.0981. ChemSky (Shanghai) International offers the compound for research applications. Chinese suppliers offer the compound at various purity grades (typically 95–99%) and packaging options—from grams to multi-kilogram quantities—serving both domestic and export markets.
Regional Market Dynamics
The global 5-methyl-1,3-oxazole-4-carboxylic acid market exhibits distinct regional characteristics, with production concentrated in Asia-Pacific (particularly China) and consumption distributed across North America, Europe, and the Asia-Pacific region, aligned with the pharmaceutical, agrochemical, and specialty chemical industries in these regions. According to the 5-Methyl-1,3-Oxazole-4-Carboxylic Acid (CAS 103879-58-9) Industry Research 2025, comprehensive data is available globally and regionally covering Europe, Asia, North America, and Latin America, including market trends from 2019–2024 with forecasts extending to 2029.
The Asia-Pacific region has emerged as a significant production hub for 5-methyl-1,3-oxazole-4-carboxylic acid, with China hosting numerous manufacturers and suppliers including XinChem. The region’s competitive advantages include lower production costs, established chemical infrastructure, and proximity to rapidly growing pharmaceutical and agrochemical industries. Chinese suppliers offer the compound at various purity grades (typically 95–99%) and packaging options, serving both domestic and export markets. The growing pharmaceutical R&D, kinase inhibitor development, and agrochemical sectors in China, India, Japan, and South Korea continue to drive regional consumption growth. The compound is classified as a pharmaceutical intermediate and organic synthesis intermediate in the Chinese market, with multiple suppliers offering the product in packaging sizes ranging from grams to kilograms.
North America remains a key market for high-purity and research-grade 5-methyl-1,3-oxazole-4-carboxylic acid, driven by demand from the pharmaceutical industry, biotechnology companies, and academic research institutions. The United States hosts numerous research organizations, pharmaceutical companies, and contract research organizations that require high-quality heterocyclic building blocks for kinase inhibitor discovery, neurological disorder drug development, and heterocyclic chemistry research. Chem-Impex International, Thermo Fisher Scientific, ChemScene, and BOC Sciences serve the North American market with extensive distribution networks. The region’s well-established regulatory framework, including FDA oversight of pharmaceutical manufacturing, supports demand for high-grade research chemicals and pharmaceutical intermediates.
Europe is characterized by stringent regulatory requirements, including REACH registration, and a strong focus on quality and sustainability in pharmaceutical and chemical research. European pharmaceutical companies, agrochemical developers, and research institutions demand high-purity heterocyclic building blocks with comprehensive documentation. Fluorochem (UK), Thermo Fisher Scientific (Acros Organics), and CymitQuimica serve the European market with in-stock availability. The compound is registered under REACH with an active registration status. The region’s strong pharmaceutical and biotechnology sectors support steady demand for high-quality oxazole derivatives.
Japan represents a specialized market where 5-methyl-1,3-oxazole-4-carboxylic acid is supplied by Fujifilm Wako Pure Chemical and Combi-Blocks for pharmaceutical research, agrochemical development, and fine chemical applications.
Regulatory and Safety Considerations
As a heterocyclic carboxylic acid and pharmaceutical intermediate, 5-methyl-1,3-oxazole-4-carboxylic acid (CAS# 103879-58-9) is subject to regulatory oversight in major global economies. Compliance with relevant regulations is essential for market access and trade.
GHS classification and handling: 5-Methyl-1,3-oxazole-4-carboxylic acid is classified with the signal word “Warning” . Hazard statements include H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). The compound is classified as Skin Irrit. 2, Eye Irrit. 2, and STOT SE 3 (respiratory system). Precautionary statements include P261 (Avoid breathing dust/fume/gas/mist/vapours/spray), P264 (Wash skin thoroughly after handling), P271 (Use only outdoors or in a well-ventilated area), P280 (Wear protective gloves, protective clothing, eye protection, and face protection), P302+P352 (IF ON SKIN: Wash with plenty of soap and water), P304+P340 (IF INHALED: Remove person to fresh air and keep comfortable for breathing), P305+P351+P338 (IF IN EYES: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing), P312 (Call a POISON CENTER or doctor if you feel unwell), P332+P313 (If skin irritation occurs: Get medical advice/attention), P337+P313 (If eye irritation persists: Get medical advice/attention), P362+P364 (Take off contaminated clothing and wash it before reuse), P403+P233 (Store in a well-ventilated place; keep container tightly closed), P405 (Store locked up), and P501 (Dispose of contents/container to an approved waste disposal plant). Personal protective equipment including lab gloves, safety glasses, and a lab coat should be worn during handling, and operations should be conducted in a well-ventilated environment or fume hood.
Storage and stability: 5-Methyl-1,3-oxazole-4-carboxylic acid should be stored at 2–8°C in a tightly sealed container protected from light and moisture. The compound is stable under recommended storage conditions but should be kept away from strong oxidizing agents and bases.
Regulatory compliance: In the European Union, the compound must comply with REACH registration requirements for import and use. The compound has an MDL number of MFCD08056309. Manufacturers and suppliers must provide comprehensive Safety Data Sheets (SDS) and maintain appropriate documentation. In the United States, 5-methyl-1,3-oxazole-4-carboxylic acid is intended for research and development use only and is not intended for therapeutic, food, cosmetic, or consumer applications unless explicitly stated otherwise. For pharmaceutical intermediate applications, manufacturers must comply with relevant FDA regulations and quality standards. The compound is not a controlled substance.
Transport information: 5-Methyl-1,3-oxazole-4-carboxylic acid is not classified as hazardous material for DOT/IATA transport purposes under standard conditions. Proper packaging, labeling, and documentation are nevertheless required for international shipping. The compound is typically shipped at ambient temperature with appropriate protection from light and moisture.
Future Outlook
The market outlook for 5-methyl-1,3-oxazole-4-carboxylic acid is positive, supported by several key growth drivers across its major application segments. While the compound remains a relatively specialized heterocyclic building block, its privileged oxazole scaffold and essential role in kinase inhibitor and neurological disorder drug development position it for steady growth in the coming years.
Key growth drivers include:
- Expansion of kinase inhibitor development: The growing emphasis on kinase inhibitor discovery, particularly in oncology and inflammatory diseases, drives demand for privileged oxazole scaffolds like 5-methyl-1,3-oxazole-4-carboxylic acid. The compound’s oxazole ring is a bioisostere of benzene and pyridine, and its incorporation into drug candidates enhances metabolic stability, lipophilicity, and target binding affinity.
- Growth in neurological disorder drug development: The increasing demand for treatments for neurological disorders—including epilepsy, Alzheimer’s disease, and Parkinson’s disease—drives consumption of 5-methyl-1,3-oxazole-4-carboxylic acid as a key intermediate for enhancing drug efficacy. The oxazole scaffold is a privileged structure in medicinal chemistry, and its derivatives are explored for their potential in central nervous system therapeutics.
- Expansion of agrochemical development: The growing global demand for novel pesticides and crop protection agents—driven by increasing food production needs and the development of more selective, environmentally friendly agrochemicals—supports consumption of 5-methyl-1,3-oxazole-4-carboxylic acid as a key intermediate for agrochemical active ingredients.
- Increasing focus on privileged heterocyclic scaffolds: The growing recognition of the oxazole ring as a privileged scaffold in medicinal chemistry drives demand for 5-methyl-1,3-oxazole-4-carboxylic acid as a versatile building block for drug discovery programs targeting diverse therapeutic areas.
- Growth in specialty chemicals and flavor applications: The expanding market for functional materials and flavoring agents creates additional opportunities for the compound as a synthetic intermediate and flavoring agent in food products.
Challenges and considerations:
- Limited scale: As a specialized heterocyclic building block, the market for 5-methyl-1,3-oxazole-4-carboxylic acid is smaller than that of commodity chemicals.
- Competition from alternative building blocks: The market faces competition from other oxazolecarboxylic acid regioisomers and alternative heterocyclic building blocks with similar reactivity profiles.
- Regulatory compliance: Increasingly stringent pharmaceutical and chemical regulations may require ongoing investment in quality systems and documentation.
- Storage requirements: The compound requires storage at 2–8°C, which may increase handling and logistics costs.
To succeed in this evolving market landscape, suppliers must focus on product quality (particularly purity and batch-to-batch consistency), supply chain reliability, regulatory compliance, and responsive customer service. Companies that can offer high-purity products, flexible packaging options, and technical support for pharmaceutical, agrochemical, and specialty chemical applications will be well-positioned to capture growing demand.
Shanghai XinChem Co., Ltd. (XinChem)
As a world-leading supplier of organic chemicals and heterocyclic building blocks, Shanghai XinChem Co., Ltd. (XinChem) is dedicated to meeting the innovative needs of the pharmaceutical, agrochemical, and fine chemical industries. Leveraging extensive experience and advanced manufacturing capabilities, XinChem provides high-quality 5-Methyl-1,3-oxazole-4-carboxylic Acid (CAS# 103879-58-9) to customers worldwide. As a trusted manufacturer and supplier based in China, XinChem combines competitive pricing, reliable supply, and exceptional service to establish itself as a preferred partner for pharmaceutical companies, agrochemical developers, and research institutions seeking this versatile privileged oxazole building block.
1. Technical Advantages
Advanced Synthesis and Purification Processes
XinChem utilizes state-of-the-art manufacturing facilities and rigorous quality control measures to ensure the purity, consistency, and safety of its 5-methyl-1,3-oxazole-4-carboxylic acid products. The production process incorporates established synthetic routes—including the cyclization of appropriate precursors followed by carboxylation—enabling the delivery of products with purity ≥95% (HPLC) and ≥98% (HPLC) to meet diverse application requirements. Strict process control ensures consistent product quality, minimal impurities, and batch-to-batch reproducibility, providing customers with reliable performance in kinase inhibitor synthesis, neurological disorder drug development, and agrochemical manufacturing.
Full-Chain Quality Control
The production process strictly adheres to international quality standards, with comprehensive quality control covering raw material sourcing, in-process monitoring, and finished product testing. Each batch is accompanied by a detailed Certificate of Analysis (COA) documenting physical and chemical properties, purity data (HPLC), melting point (149–153°C), density (1.294 g/cm³), and impurity profiles. XinChem offers batch-specific COA, customizable packaging, and globally compliant REACH, ISO 9001, and GMP-aligned manufacturing.
2. Product Advantages
High Purity and Consistent Quality
XinChem offers 5-methyl-1,3-oxazole-4-carboxylic acid with purity ≥95% (HPLC) and ≥98% (HPLC) available, ensuring optimal performance in pharmaceutical synthesis, agrochemical development, and heterocyclic chemistry applications. The product’s high purity minimizes the risk of unwanted side reactions and impurities, making it suitable for demanding applications in kinase inhibitor discovery, neurological disorder drug development, and agrochemical actives. The compound is supplied as a faint beige to yellow crystalline powder with consistent appearance and defined melting point specifications.
Comprehensive Specifications
Key specifications include:
- Molecular Formula: C₅H₅NO₃
- Molecular Weight: 127.10 g/mol
- CAS Number: 103879-58-9
- MDL Number: MFCD08056309
- Synonyms: 5-Methyloxazole-4-carboxylic acid; 5-Methyl-1,3-oxazol-4-carbonsäure; 5-Methyl-4-oxazolecarboxylic acid
- Appearance: Faint beige to yellow crystalline powder
- Purity: ≥95% (HPLC) / ≥98% (HPLC) available
- Melting Point: 149–153°C
- Boiling Point: 274.4°C at 760 mmHg
- Density: 1.294 g/cm³
- Solubility: Soluble in polar organic solvents; limited aqueous solubility
- Storage: 2–8°C, sealed, protect from light and moisture
- GHS Classification: Warning; H315, H319, H335
Flexible Packaging Solutions
XinChem provides a range of packaging options to accommodate diverse customer needs, from laboratory-scale quantities (1 g, 5 g, 10 g, 25 g) to industrial-scale packaging (100 g, 500 g, 1 kg, 5 kg) and bulk shipments. Customized packaging solutions are available upon request, ensuring safe handling, storage, and transportation with appropriate protection from light and moisture.
3. Application Fields
As a privileged oxazole building block, 5-Methyl-1,3-oxazole-4-carboxylic Acid (CAS# 103879-58-9) exhibits wide application value across multiple industries:
Pharmaceutical R&D and Drug Discovery:
- Key intermediate for the synthesis of pharmaceuticals targeting neurological disorders, enhancing drug efficacy
- Building block for kinase inhibitors and heterocyclic scaffolds prevalent in medicinal chemistry
- Precursor for bioactive molecules through direct coupling reactions via the carboxylic acid group
- Privileged scaffold for medicinal chemistry campaigns targeting diverse therapeutic areas
Agrochemical Development:
- Key intermediate for the formulation of agrochemicals
- Building block for pest control solutions less harmful to beneficial insects
- Precursor for novel fungicides, herbicides, and insecticides
Specialty Chemical Synthesis and Heterocyclic Chemistry:
- Versatile building block for heterocyclic synthesis
- Intermediate for oxazole-based scaffolds and functional materials
- Flavoring agent in food products, contributing to unique taste profiles
Analytical Chemistry and Research Applications:
- Reference standard for analytical method development and validation
- Valuable tool for academic and industrial research in organic chemistry
4. Service Support
Technical Expertise and Customized Solutions
XinChem’s team of experienced chemists and application engineers provides full technical support throughout the customer journey—from product selection and specification development to application guidance and troubleshooting. Whether customers require optimization of coupling conditions, guidance on heterocyclic scaffold design, or assistance with regulatory documentation, XinChem’s technical experts are ready to help. Custom synthesis and contract manufacturing with flexible scaling from R&D to commercial quantities are available upon request.
Global Logistics and Reliable Supply
With established supply chains serving markets across Europe, North America, Asia-Pacific, and beyond, XinChem ensures timely delivery and consistent product availability. The company’s logistics team manages all aspects of international shipping, including customs clearance and documentation, with appropriate temperature control (2–8°C) and moisture protection for product stability.
Regulatory Support
XinChem provides comprehensive documentation to support regulatory compliance, including Safety Data Sheets (SDS), Certificates of Analysis (COA), and other required certificates. The company stays current with evolving regulatory requirements in major markets, including REACH, TSCA, and other regional regulations, helping customers navigate the complexities of global trade.
5. Reasons to Choose XinChem
- Professionalism: Extensive experience and deep expertise in heterocyclic building block synthesis and supply.
- Quality: Rigorous quality control, high purity (≥95% to ≥98%), and adherence to international standards.
- Reliability: Stable supply, competitive pricing, and timely delivery.
- Flexibility: Customized solutions to meet diverse customer needs, including custom synthesis and packaging.
- Service: Responsive technical support and comprehensive documentation including batch-specific COA.
Contact us today to start your partnership with XinChem!
Website: www.xinchem.com
Email: sales1@xinchem.com
WhatsApp: +86 18049800532
Post time: Oct-07-2026
