Pyridine hydrofluoride (also known as hydrogen fluoride-pyridine complex, Olah‘s reagent, pyridinium poly(hydrogen fluoride), or PPHF, CAS: 32001-55-1) is an organic salt complex formed by the reaction of pyridine with hydrogen fluoride.It typically appears as a colorless to pale yellow or light brown liquid, supplied as a stable complex containing approximately 30% pyridine and 70% hydrogen fluoride by weight.The molecular formula is C₅H₆FN with a molecular weight of 99.11 g/mol, though the commercial reagent is often referred to by its complex formula C₅H₅N·9HF (MW 259.20).Key physical properties include a density of 1.1 g/mL at 20°C, a boiling point of 50°C at 1 mmHg, and solubility in common organic solvents such as dichloromethane, acetonitrile, ether, THF, and toluene.
As a convenient, less volatile form of anhydrous hydrogen fluoride (HF) with enhanced nucleophilicity, pyridine hydrofluoride serves as a premier fluorinating agent and a stable, liquid source of HF for specialized applications in organic synthesis.Unlike gaseous HF or metal fluorides, this pyridine-stabilized complex provides controlled fluoride ion reactivity under mild conditions, offering significant advantages in safety and selectivity.The compound is widely utilized in fluorination reactions, hydrofluorination of alkenes and alkynes, deprotection of silyl ethers, and ring-opening of epoxides, aziridines, and cyclopropanes.Market demand is closely linked to the global pharmaceutical and agrochemical industries, where fluorinated intermediates play an increasingly critical role in drug discovery and crop protection. Based on its chemical characteristics and industrial chain position, this article systematically analyzes international market dynamics of pyridine hydrofluoride, focusing on core application scenarios, competitive landscape, regional differences, regulatory trends, and future outlook, providing strategic references for industry participants.
Core Application Fields and Demand
Market demand for pyridine hydrofluoride is concentrated in three major sectors: pharmaceutical synthesis and drug discovery (≈45-50% of global consumption), agrochemical production (≈25-30%), and advanced organic synthesis and specialty chemicals (≈20-25%).
In the pharmaceutical synthesis and drug discovery sector, pyridine hydrofluoride serves as an indispensable tool for introducing fluorine atoms into drug candidates. Fluorinated pharmaceuticals often exhibit enhanced metabolic stability, improved bioavailability, and altered pharmacokinetic profiles.The reagent is instrumental in synthesizing key building blocks for pharmaceuticals, particularly in the production of fluorinated drugs that represent a growing segment of the global pharmaceutical market.It is used in the synthesis of β-fluoroamines from amino alcohols, the fluorination of acetylenes, and the preparation of biologically active fluorinated compounds, including analogues of antimitotic natural products such as curacin A.In medicinal chemistry research, pyridine hydrofluoride is essential for modifying organic molecules through controlled fluorination, enabling the development of drugs with enhanced efficacy and reduced side effects.The compound also plays a critical role in the synthesis of antiviral compounds, including those targeting SARS-CoV-2, as well as antimicrobial agents with demonstrated activity against resistant strains such as MRSA and E. coli.
In the agrochemical production sector, pyridine hydrofluoride supports the development of specialty pesticides, herbicides, and fungicides.The introduction of fluorine atoms into agrochemical molecules enhances their biological activity, metabolic stability, and environmental profile, leading to more effective crop protection agents at lower application rates. The growing global population and the resulting need to increase agricultural productivity continue to drive demand for high-performance fluorinated agrochemical intermediates.
In advanced organic synthesis and specialty chemicals, pyridine hydrofluoride is a versatile reagent for a wide range of chemical transformations. It is used for the direct hydrofluorination of alkenes and alkynes, the conversion of alcohols to alkyl fluorides, and the rapid ring-opening of epoxides.The reagent is also employed in the deprotection of silyl ethers, oxidative fluorination when combined with electrolytic processes or lead(IV) compounds, and halofluorination of alkenes and alkynes with halonium ion sources.Additionally, it finds application in the production of fluorinated polymers and materials that exhibit high thermal stability and resistance to chemical degradation.The compound’s ability to substitute fluorine for secondary or tertiary hydroxy groups, other halides, or primary amine groups makes it a valuable tool for constructing complex molecular architectures in organic synthesis.
Major Market Participants
The global supply system for pyridine hydrofluoride follows a pattern of specialized chemical manufacturers, fluorochemical producers, and fine chemical suppliers, with production concentrated in China, North America, and Europe. The global Hydrogen Fluoride Pyridine market was estimated at USD 145.5 million in 2024 and is projected to grow at a compound annual growth rate (CAGR) of 3.85% during the forecast period.
Major international suppliers and manufacturers include Sigma-Aldrich (offering hydrogen fluoride-pyridine complex with ca 70% HF), Acros Organics (Fisher Scientific) (offering 70% HF complex in 25g and larger quantities), Alfa Aesar, Thomas Scientific, Santa Cruz Biotechnology, Fluorochem (stocking in the UK and China), Honeywell, and Oakwood Chemical.Chinese manufacturers dominate global supply, with key producers including Zibo Hui Jie Chemical, Hunan Nonferrous Chenzhou Fluoride Chemical, and various specialized fluorochemical producers in Jiangsu, Shandong, and other industrial provinces.The compound is generally supplied as a colorless to pale yellow or light brown liquid with HF content typically around 70% by weight. It is available in research quantities (5g, 10g, 25g, 100g) and industrial bulk scales (1kg, 5kg, 25kg, and larger).
Shanghai XinChem Co., Ltd. (XinChem) has established a reliable, quality‑controlled supply chain for high‑purity Pyridine Hydrofluoride (Olah‘s Reagent, CAS 32001-55-1). Our product is manufactured under strict quality management, achieving consistent specifications with HF content ≥70%, low moisture (≤0.30%), and low impurity profiles, fully complying with global pharmaceutical, agrochemical, and research standards. It is available in research grade (for laboratory and R&D applications), industrial grade (for agrochemical and material synthesis), and high‑purity grade (for pharmaceutical and advanced applications). All XinChem pyridine hydrofluoride is supplied in compatible containers (polyethylene, fluoropolymer-lined) to ensure product integrity and safety.
Regional Market Dynamics
Global demand for pyridine hydrofluoride shows regional differentiation: “Asia‑Pacific dominates production, North America and Europe lead in high‑purity pharmaceutical and research applications, and Latin America and Middle East & Africa are emerging growth regions.”
Asia‑Pacific, particularly China, is the world‘s largest producer and fastest‑growing region for fluorinated intermediates and pyridine hydrofluoride. Chinese manufacturers, including XinChem, offer competitive pricing at scales ranging from research quantities to industrial batches, serving both domestic demand for pharmaceutical and agrochemical intermediates and exports to global markets. The region‘s expanding pharmaceutical manufacturing base, coupled with growing investment in agrochemical research and development, continues to drive demand for high‑purity fluorinating agents.
North America (United States and Canada) and Europe (Germany, United Kingdom, France, Italy) together account for the largest share of high‑purity pharmaceutical and research consumption (≥99%), driven by the highest concentration of pharmaceutical R&D, agrochemical innovation, and academic research. Key suppliers such as Sigma-Aldrich, Acros Organics, and Fluorochem maintain dedicated stock in the US, UK, and European warehouses. Customer requirements in these regions are stringent: HF content ≥70%, low moisture (≤0.30%), full traceability, compliance with REACH and TSCA regulations, and comprehensive impurity documentation. The compound is classified as a dangerous good for transport due to its corrosive and toxic nature, requiring specialized packaging and shipping procedures.
Japan and South Korea demand ultra‑high‑purity grades for advanced pharmaceutical development and high‑performance material applications.
Regulatory and Environmental Considerations
Pyridine hydrofluoride (CAS 32001-55-1) is subject to stringent regulatory oversight in major economies due to its corrosive, toxic, and hazardous nature. The compound is classified as a dangerous good for transport: UN 2928, Hazard Class 8 (corrosive), subsidiary hazard 6.1 (toxic), Packing Group II. Proper shipping name: Toxic solids, corrosive, organic, n.o.s. The compound should be stored at 2‑8°C under inert atmosphere in compatible containers (polyethylene, FEP, PFA, PTFE).
In the European Union, pyridine hydrofluoride is registered under REACH; importers and manufacturers must provide Safety Data Sheets (SDS). The compound is classified with hazard statements: H301+H311+H331 (Toxic if swallowed, in contact with skin or if inhaled), H314 (Causes severe skin burns and eye damage), and H318 (Causes serious eye damage). The compound is hygroscopic, corrosive, and extremely toxic. Moisture drastically inhibits fluorination activity, and contact with glass must be avoided.The material should be handled only in a fume hood, with appropriate impermeable protective clothing, safety goggles or face shield, and chemical‑resistant gloves. Effects of HF exposure are often delayed for several hours, but the burns are extremely painful and can be slow to heal.Sodium fluoride, a base, and calcium chloride are useful for neutralization and workup.
In the United States, pyridine hydrofluoride is regulated under TSCA as an existing chemical substance; for pharmaceutical API use, adherence to cGMP guidelines (21 CFR Parts 210/211) is required. The compound is listed in the NCATS Inxight Drugs database and is subject to EPA regulations for toxic substances.
In China, pyridine hydrofluoride is listed in the Inventory of Existing Chemical Substances (IECSC) and requires safety production licenses for manufacturing facilities. It is classified as a dangerous chemical under Chinese regulations, and production facilities must comply with strict environmental and safety standards. The compound is supplied with full regulatory documentation, including MSDS in Chinese and English, to ensure safe handling and customs clearance.
Environmentally, pyridine hydrofluoride is highly toxic to aquatic organisms and requires responsible handling and disposal. Manufacturing processes generate fluoride‑containing waste streams requiring proper treatment and disposal in accordance with environmental regulations.
Future Outlook
The market outlook for pyridine hydrofluoride is tied to three core drivers: (1) sustained growth in global demand for fluorinated pharmaceutical intermediates, driven by the increasing role of fluorine in drug design and the compound‘s utility as a versatile fluorinating agent; (2) rising demand for high‑performance agrochemicals to ensure food security, where fluorinated intermediates serve as key building blocks for next‑generation crop protection agents; and (3) expanding applications in advanced organic synthesis, including fluorination reactions, deprotection, and ring‑opening chemistry for the construction of complex molecular architectures. The global Hydrogen Fluoride Pyridine market is projected to grow at a CAGR of 3.85% through the forecast period.
Challenges include: the hazardous nature of the compound requiring specialized handling, storage, and shipping procedures; raw material cost volatility for hydrogen fluoride and pyridine; competition from alternative fluorinating agents (e.g., Selectfluor, DAST, Deoxo-Fluor); and increasing regulatory scrutiny on hazardous chemicals. Enterprises should focus on securing high‑purity (HF ≥70%) production capabilities, maintaining rigorous impurity documentation for global regulatory filings, ensuring compliance with REACH and TSCA requirements, and building long‑term supply partnerships with pharmaceutical manufacturers, agrochemical companies, and research institutions.
Shanghai XinChem Co., Ltd. (XinChem)
As a world‑leading supplier of fluorinated intermediates, pharmaceutical building blocks, and specialty chemicals, Shanghai XinChem Co., Ltd. (XinChem) has always focused on the innovative needs of the pharmaceutical, agrochemical, and chemical research industries. Relying on core advantages in fluorination chemistry, quality control, and global logistics, we provide high‑quality Pyridine Hydrofluoride (Olah‘s Reagent, CAS 32001-55-1) to global customers. Our product is manufactured under strict quality management, achieving consistent specifications for pharmaceutical, agrochemical, and research grades. Fully compliant with international quality standards, it is an ideal fluorinating agent for pharmaceutical API synthesis, agrochemical development, and advanced organic synthesis.
1. Technical Advantages
High Purity & Consistency: Our pyridine hydrofluoride achieves HF content of ≥70% by weight, supplied as a colorless to pale yellow or light brown liquid, molecular weight 99.11 g/mol, density 1.1 g/mL at 20°C, moisture ≤0.30%.
Low Impurity Profile: Strict control of residual water, pyridine content, and related impurities ensures high performance for fluorination, deprotection, and ring‑opening reactions.
Multiple Grades Available: We offer research grade (for laboratory and R&D applications), industrial grade (for agrochemical and material synthesis), and high‑purity grade (for pharmaceutical and advanced applications).
Batch‑to‑Batch Uniformity: Rigorous analytical testing (HF content, moisture, density, GC analysis) guarantees consistent quality and reproducible performance across all production lots.
2. Product Advantages
Versatile Fluorinating Agent: Directly used in pharmaceutical synthesis (β‑fluoroamines, fluorinated drug intermediates, antiviral compounds, antimicrobial agents), agrochemical production (fluorinated pesticides, herbicides, fungicides), deprotection of silyl ethers, hydrofluorination of alkenes and alkynes, conversion of alcohols to alkyl fluorides, ring‑opening of epoxides, aziridines, and cyclopropanes, oxidative fluorination, and halofluorination.
Convenient, Stable HF Source: Provides a less volatile, safer alternative to anhydrous HF with enhanced nucleophilicity and controlled fluoride ion reactivity under mild conditions.
High Reactivity: Substitutes F for secondary or tertiary hydroxy groups, other halides, or primary amine groups; adds HF to alkenes, alkynes, epoxides, aziridines, and cyclopropanes.
Compatible Packaging: Supplied in polyethylene, FEP, PFA, or PTFE containers to prevent degradation and ensure product integrity.
Flexible Packaging: 5g, 10g, 25g, 100g, 500g (R&D); 1kg, 5kg, 10kg, 25kg HDPE containers/fluoro‑polymer lined drums (industrial); full custom packaging available.
Reliable Supply Chain: Annual capacity in the multi‑ton range, with dedicated temperature‑controlled warehousing (2‑8°C, inert atmosphere, sealed compatible containers) and just‑in‑time delivery capabilities.
3. Application Fields
- Pharmaceutical Synthesis: β‑fluoroamines from amino alcohols, fluorinated drug intermediates, antiviral compounds (SARS‑CoV‑2 inhibitors), antimicrobial agents (MRSA, E. coli), fluorinated natural product analogues (curacin A), and fluorinated APIs.
- Agrochemical Production: Fluorinated pesticides, herbicides, fungicides, and crop protection agents.
- Advanced Organic Synthesis: Hydrofluorination of alkenes and alkynes, conversion of alcohols to alkyl fluorides, ring‑opening of epoxides, aziridines, and cyclopropanes, deprotection of silyl ethers, oxidative fluorination, halofluorination, and fluorodehydroxylation.
- Fluorine Chemistry: Introduction of fluorine into organic molecules for metabolic stability enhancement, bioavailability improvement, and pharmacokinetic optimization.
- Material Science: Production of fluorinated polymers and materials with high thermal stability and chemical resistance.
4. Service Support
Our technical team provides fluorination reaction guidance, application optimization recommendations, impurity profiling, and regulatory documentation (Certificate of Analysis, Technical Data Sheet, Safety Data Sheet, REACH compliance, TSCA certification). We offer custom packaging and just‑in‑time delivery.
5. Why Choose XinChem
- Professionalism: 20+ years in the pharmaceutical, agrochemical, and fluorochemical industries.
- Flexibility: Tailored to customer purity specifications, grade requirements, packaging sizes, and regulatory documentation needs.
- Cost‑effectiveness: High quality at competitive industrial pricing.
Contact us now to start cooperation!
Website: www.xinchem.com
Email: sales1@xinchem.com
WhatsApp: +86 18049800532
Post time: Jul-26-2026