The Shelf-Stable Trifluoromethylating Agent for Pharmaceutical Synthesis, Agrochemical Development, and NMR Analysis: Potassium Trifluoroacetate (KTFA, CAS# 2923-16-2)

Potassium trifluoroacetate (CAS# 2923-16-2), also known as KTFA, potassium 2,2,2-trifluoroacetate, or trifluoroacetic acid potassium salt, is an organofluorine salt with the molecular formula CF₃COOK and a molecular weight of 152.11 g/mol. Its molecular structure consists of a potassium cation (K⁺) paired with a trifluoroacetate anion (CF₃COO⁻), combining a trifluoromethyl (CF₃) group with a carboxylate functionality. This unique ionic architecture renders the compound non-volatile and easy to handle compared to gaseous trifluoromethyl sources such as fluoroform (CHF₃), while the trifluoromethyl group imparts exceptional thermal stability and chemical resistance.

As a white crystalline powder with a melting point of 140–142°C, a density of 1.49 g/mL, and a boiling point of approximately 260°C, potassium trifluoroacetate is highly soluble in water (0.1 g/mL) and polar solvents such as NMP. The compound is hygroscopic and should be stored under dry, inert conditions. It is typically supplied at ≥98% and ≥99% purity (assay), with trace-metal specifications available for demanding applications.

Potassium trifluoroacetate serves as a versatile, shelf-stable, and easy-to-handle source of the trifluoromethyl (CF₃) group in copper-catalyzed cross-coupling reactions and iron-catalyzed decarboxylative trifluoromethylation. Its exceptional utility in introducing CF₃ groups into aryl and heteroaryl scaffolds makes it indispensable in pharmaceutical and agrochemical intermediate synthesis. The compound is also used as a standard in ¹⁹F NMR spectroscopy, in biochemical assays, in electrochemistry, and in the formulation of advanced materials. 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 trifluoromethylating agent.

Key Properties and Reactivity Profile

Potassium trifluoroacetate (CAS# 2923-16-2) is a shelf-stable organofluorine salt whose value derives from its unique combination of ionic stability and CF₃-releasing capability.

Key physicochemical parameters include:

• Molecular Formula: C₂F₃KO₂
• Molecular Weight: 152.11 g/mol
• CAS Number: 2923-16-2
• EINECS Number: 220-877-5
• MDL Number: MFCD00013215
• Synonyms: KTFA; Potassium 2,2,2-trifluoroacetate; Trifluoroacetic acid potassium salt
• Appearance: White crystalline powder or solid
• Purity: ≥98% (assay); ≥99% (assay) available
• Melting Point: 140–142°C
• Boiling Point: ~260°C
• Density: 1.49 g/mL
• Solubility: Highly soluble in water and polar solvents (NMP, DMF)
• Decomposition: >200°C (rapid decarboxylation)
• Storage: Room temperature, store in a dry, inert atmosphere; hygroscopic
• GHS Classification: Danger; H400 (Very toxic to aquatic life)
• Water Content (Karl Fischer): ≤2.0% typical; anhydrous grades available
• Assay (Non-aqueous acid-base Titration): 97.5–102.5%

The compound’s reactivity is defined by its ability to undergo decarboxylation to release the trifluoromethyl group (CF₃) under copper or iron catalysis. The generally accepted mechanism involves the decarboxylation of potassium trifluoroacetate to form a metal-trifluoromethyl intermediate (e.g., Cu-CF₃), which undergoes oxidative addition to aryl halides followed by reductive elimination to yield trifluoromethylated arenes. Unlike neutral trifluoromethyl sources, KTFA is an ionic salt, rendering it non-volatile and easier to handle than gaseous fluoroform. The compound can participate in palladium-catalyzed decarboxylative cross-coupling reactions with aryl halides to form trifluoromethylated arenes. KTFA delivers superior reactivity over the sodium analog, enabling higher yields with less reactive aryl bromides in pharmaceutical and agrochemical intermediate synthesis.

A critical handling consideration is the compound’s hygroscopicity. Water content exceeding 0.5% can quench active catalytic species (especially Cu(I) and Fe(II) intermediates) and inhibit decarboxylation by stabilizing the carboxylate anion via hydrogen bonding. For optimal performance, KTFA should be dried under high vacuum at 100–115°C for 12–24 hours before use in moisture-sensitive reactions.

Core Application Fields and Demand

Market demand for potassium trifluoroacetate (CAS# 2923-16-2) is concentrated in four primary sectors: pharmaceutical intermediates and API manufacturing (approximately 40–45% of global consumption), agrochemical intermediates (approximately 20–25%), biochemical reagents and analytical standards (approximately 15–20%), and organic synthesis reagents and materials science (approximately 15–20%). Its unique combination of shelf stability, high CF₃-releasing efficiency, and versatility across multiple reaction types serves as the core driver of sustained demand growth. The global potassium trifluoroacetate market was valued at USD 20.5 million in 2025 and is projected to reach USD 27.3 million by 2031, growing at a CAGR of 4.9%.

In pharmaceutical intermediates and API manufacturing, potassium trifluoroacetate is a critical reagent for introducing trifluoromethyl groups into drug candidates. The CF₃ group is one of the most important functional groups in modern medicinal chemistry, enhancing metabolic stability, lipophilicity, and bioavailability of pharmaceutical compounds. KTFA is particularly valuable for the trifluoromethylation of aryl and heteroaryl iodides, a crucial transformation in the synthesis of active pharmaceutical ingredients. The compound has demonstrated high yields in the copper-catalyzed trifluoromethylation of diverse substrates, including 4-iodobenzonitrile (92% yield), methyl 4-iodobenzoate (95% yield), 1-iodo-4-nitrobenzene (85% yield), 4-iodoanisole (88% yield), and 2-iodopyridine (75% yield). Potassium trifluoroacetate serves as an excellent, stable, and easy-to-handle source of the CF₃ group in copper-catalyzed cross-coupling reactions, particularly effective for the trifluoromethylation of aryl and heteroaryl iodides. The compound also enables the synthesis of trifluoromethylated heterocycles, including 4-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine (76% yield).

In agrochemical intermediates, potassium trifluoroacetate is employed in the synthesis of fluorine-containing pesticides and crop protection agents. The introduction of CF₃ groups into agrochemical active ingredients enhances their metabolic stability, lipophilicity, and target selectivity. KTFA is used as an intermediate in the production of various agrochemical products, contributing to the development of more effective and environmentally stable pesticides.

In biochemical reagents and analytical standards, potassium trifluoroacetate is widely utilized as a standard in ¹⁹F NMR spectroscopy, helping researchers analyze molecular structures and dynamics effectively. The compound’s well-defined ¹⁹F NMR signals—with the CF₃ group appearing at approximately −116.5 ppm (quartet) and the COO group at approximately −164.4 ppm (quartet)—make it a valuable reference standard for quantitative ¹⁹F NMR analysis and reaction monitoring. The compound is also employed in biochemical assays to study enzyme activity and protein interactions, providing insights into biological processes.

In electrochemistry and materials science, potassium trifluoroacetate is utilized in the development of electrochemical sensors, enhancing the detection of various analytes in environmental and clinical samples. The compound plays a role in the formulation of advanced materials, including polymers and coatings, which benefit from its unique properties such as thermal stability and chemical resistance. KTFA is also used in the surface modification of materials and in the synthesis of fluorinated polymers and coatings with unique properties.

Major Market Participants

The global supply system for potassium trifluoroacetate (CAS# 2923-16-2) features a pattern of “specialized fluorochemical manufacturers, multinational research chemical distributors, and Chinese producers serving distinct market segments.” The global market report covers manufacturers in the Americas (United States, Canada, Mexico, Brazil), Asia-Pacific (China, Japan, Korea, Southeast Asia, India, Australia), Europe (Germany, France, UK, Italy, Russia), and the Middle East & Africa, with comprehensive data on market trends, company formation, revenue, market share, and M&A activity.

In the global research and high-purity segment, key international suppliers include Thermo Fisher Scientific (Alfa Aesar), offering the compound at 98% purity under catalog number A17398 with water content ≤2.0% (Karl Fischer), assay 97.5–102.5% (non-aqueous acid-base titration), and melting point 138–145°C. Chem-Impex International offers the compound at ≥99% (assay) purity under catalog number 36636 with melting point 140–142°C and density 1.49 g/mL. Gelest (Mitsubishi Chemical Group) offers the compound under product code CXPO080 with 98% purity. Santa Cruz Biotechnology offers the compound at $45.00 for 25 g under catalog number sc-250771. AK Scientific (AKSci) offers the compound at 95% purity under product code J97969. Halocarbon Life Sciences, TCI Chemicals, and VWR International are also key players in the global market. 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 potassium trifluoroacetate from China, offering the compound with stringent quality standards for use in pharmaceutical synthesis, agrochemical development, and cross-coupling applications. XinChem provides the compound in multiple purity grades—including ≥98% (Reagent Grade) and ≥99% (High-Purity Grade)—with comprehensive quality documentation, batch-specific Certificates of Analysis (COA), customizable packaging, and globally compliant REACH, ISO 9001, and GMP-aligned manufacturing. Other Chinese suppliers include Sinochem Lantian, Nantong Baokai Pharmaceutical, Jinan Rufo Chemical, Jinan Wanxingda Chemical, and Hangzhou LZ, all of which are listed as key manufacturers in the global potassium trifluoroacetate market. Chinese manufacturers offer the compound at various purity grades and packaging options—from grams to multi-kilogram quantities—serving both domestic and export markets. The compound is classified as a pharmaceutical intermediate, pesticide intermediate, and biochemical reagent in the global market segmentation.

Regional Market Dynamics

The global potassium trifluoroacetate 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 fine chemical industries in these regions. The global market is segmented by type (Purity 98%, Purity 99%, Others) and by application (Pharmaceutical Intermediates, Pesticide Intermediates, Biochemical Reagents, Others). The market size is predicted to grow from US

20.5millionin2025toUS 27.3 million in 2031, with a CAGR of 4.9% during the forecast period.

The Asia-Pacific region is the dominant force in the global potassium trifluoroacetate market, with China serving as the world’s manufacturing hub. 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 98–99%) and packaging options, serving both domestic and export markets. The rapid growth of pharmaceutical R&D, agrochemical development, and fine chemical synthesis in China, India, Japan, and South Korea continues to drive regional consumption growth. Chinese manufacturers including Sinochem Lantian and Nantong Baokai Pharmaceutical are key players in the global market.

North America remains a key market for high-purity and research-grade potassium trifluoroacetate, 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 trifluoromethylating agents for drug discovery and development. Thermo Fisher Scientific, Chem-Impex International, Santa Cruz Biotechnology, and AK Scientific serve the North American market with extensive distribution networks. The region is listed as a key market segment in the global potassium trifluoroacetate market report, covering the United States, Canada, and Mexico.

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 trifluoromethylating agents with comprehensive documentation. The region is segmented in the global market report covering Germany, France, the UK, Italy, and Russia.

Japan represents a specialized market where potassium trifluoroacetate is supplied for pharmaceutical research, agrochemical development, and fine chemical synthesis, with the region segmented alongside China, Korea, Southeast Asia, India, and Australia in the global market analysis.

Regulatory and Safety Considerations

As an organofluorine salt and pharmaceutical intermediate, potassium trifluoroacetate (CAS# 2923-16-2) is subject to regulatory oversight in major global economies. Compliance with relevant regulations is essential for market access and trade.

GHS classification and handling: Potassium trifluoroacetate is classified with the signal word ”Danger”. Hazard statements include H400 (Very toxic to aquatic life). Precautionary statements include P273 (Avoid release to the environment), P391 (Collect spillage), and P501 (Dispose of contents/container to an approved waste disposal plant). The compound is classified as Acute Toxic, Irritant, and Environmental Hazard. The compound is incompatible with strong acids and strong oxidizing agents. It is hygroscopic and should be stored in a dry, inert atmosphere. 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.

Storage and stability: Potassium trifluoroacetate should be stored at room temperature in a tightly sealed container in a dry, well-ventilated place, protected from moisture and incompatible materials. For demanding synthetic applications, the compound should be dried under high vacuum (<1 mbar) at 100–115°C for 12–24 hours to achieve anhydrous conditions (water content <0.5%). Storage in a desiccator or glovebox is recommended.

Regulatory compliance: In the European Union, the compound must comply with REACH registration requirements for import and use. The compound has an EINECS number of 220-877-5. Manufacturers and suppliers must provide comprehensive Safety Data Sheets (SDS) and maintain appropriate documentation. In the United States, potassium trifluoroacetate 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.

Transport information: Potassium trifluoroacetate is not classified as hazardous material for DOT/IATA transport purposes. Proper packaging, labeling, and documentation are nevertheless required for international shipping in compliance with the International Maritime Dangerous Goods Code (IMDG Code) and other transport regulations. The compound is typically shipped at ambient temperature with appropriate protection from moisture.

Environmental considerations: Potassium trifluoroacetate is classified as very toxic to aquatic life (H400). The compound requires responsible handling and disposal, with appropriate containment measures to prevent environmental release. The development of greener fluorination methodologies and waste treatment protocols is an ongoing focus in the industry.

Future Outlook

The market outlook for potassium trifluoroacetate is positive, supported by several key growth drivers across its major application segments. The global market is projected to grow from USD 20.5 million in 2025 to USD 27.3 million by 2031, registering a CAGR of 4.9%.

Key growth drivers include:

1. Expansion of fluorinated pharmaceutical R&D: The growing emphasis on fluorine incorporation in drug design drives demand for versatile trifluoromethylating agents. Approximately 20–25% of marketed pharmaceuticals contain fluorine, and this proportion continues to grow. KTFA’s ability to introduce CF₃ groups under mild conditions with high yields across diverse substrates—from electron-deficient aryl iodides to heteroaryl iodides—positions it at the forefront of medicinal chemistry.
2. Growth in agrochemical development: The increasing demand for novel fluorinated crop protection agents drives consumption of potassium trifluoroacetate as a precursor for CF₃-containing agrochemical active ingredients. Fluorine substitution enhances metabolic stability and target selectivity of pesticides.
3. Expansion of flow chemistry and process intensification: The rapid and efficient trifluoromethylation of aromatic and heteroaromatic compounds using potassium trifluoroacetate enabled by flow systems has been demonstrated in peer-reviewed literature. The use of flow chemistry allows for short residence times at high temperatures (200°C+) with precise control over reaction parameters, enabling rapid, high-yielding trifluoromethylation of aryl and heteroaryl iodides. This methodology supports the growing trend toward continuous manufacturing in the pharmaceutical industry.
4. Increasing demand for ¹⁹F NMR standards: The growing use of ¹⁹F NMR spectroscopy for reaction monitoring and quantitative analysis in pharmaceutical R&D drives demand for well-characterized ¹⁹F NMR reference standards. KTFA’s distinct ¹⁹F NMR signals make it a valuable reference standard for quantitative analysis.
5. Expansion of applications in materials science and electrochemistry: The growing use of potassium trifluoroacetate in advanced polymer formulation, coatings, and electrochemical sensor development creates new opportunities for the compound.

Challenges and considerations:

• Hygroscopicity: KTFA is significantly hygroscopic, and water content exceeding 0.5% can quench active catalytic species and inhibit decarboxylation. This requires careful drying and storage protocols, which may increase handling costs.
• Environmental toxicity: The compound’s classification as very toxic to aquatic life (H400) requires responsible handling and disposal, with appropriate containment measures.
• Competition from alternative trifluoromethylating agents: The market faces competition from alternative CF₃ sources including the sodium analog, Ruppert-Prakash reagent (TMSCF₃), and gaseous fluoroform.
• Regulatory compliance: Increasingly stringent chemical and environmental regulations may require ongoing investment in quality systems and documentation.
• Limited scale: As a specialized organofluorine salt, the market for potassium trifluoroacetate is smaller than that of commodity fluorochemicals.

To succeed in this evolving market landscape, suppliers must focus on product quality (particularly assay purity, low water content, and trace-metal specifications), supply chain reliability, regulatory compliance, and responsive customer service. Companies that can offer high-purity products with low moisture content, flexible packaging options, and technical support for pharmaceutical, agrochemical, and analytical applications will be well-positioned to capture growing demand.

Shanghai XinChem Co., Ltd. (XinChem)

As a world-leading supplier of organic chemicals and organofluorine reagents, 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 Potassium Trifluoroacetate (CAS# 2923-16-2) 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 trifluoromethylating agent.

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 potassium trifluoroacetate products. The production process incorporates established synthetic routes—including the neutralization of trifluoroacetic acid with potassium hydroxide, potassium carbonate, or potassium bicarbonate followed by crystallization and purification—enabling the delivery of products with purity ≥98% (Reagent Grade) and ≥99% (High-Purity Grade) 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 pharmaceutical synthesis, agrochemical development, and analytical applications.

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 (assay), water content (Karl Fischer titration), melting point, and impurity profiles. XinChem offers batch-specific COA, customizable packaging, and globally compliant REACH, ISO 9001, and GMP-aligned manufacturing. This commitment to quality ensures that XinChem’s potassium trifluoroacetate meets the stringent requirements of pharmaceutical R&D, agrochemical development, and analytical applications.

2. Product Advantages

High Purity and Consistent Quality
XinChem offers potassium trifluoroacetate with purity ≥98% (assay) and ≥99% (assay) available, ensuring optimal performance in pharmaceutical synthesis, agrochemical development, and cross-coupling applications. The product’s high purity and consistent quality minimize the risk of unwanted side reactions and impurities, making it suitable for demanding applications in drug discovery, crop protection, and analytical chemistry. Anhydrous grades with water content ≤0.5% are available for moisture-sensitive synthetic applications.

Comprehensive Specifications
Key specifications include:

• Molecular Formula: C₂F₃KO₂
• Molecular Weight: 152.11 g/mol
• CAS Number: 2923-16-2
• EINECS Number: 220-877-5
• Synonyms: KTFA; Potassium 2,2,2-trifluoroacetate; Trifluoroacetic acid potassium salt
• MDL Number: MFCD00013215
• Appearance: White crystalline powder or solid
• Purity: ≥98% (assay) / ≥99% (assay) available
• Melting Point: 140–142°C
• Boiling Point: ~260°C
• Density: 1.49 g/mL
• Water Content (Karl Fischer): ≤2.0% (standard); ≤0.5% (anhydrous grade available)
• Assay (Non-aqueous acid-base Titration): 97.5–102.5%
• Solubility: Highly soluble in water and polar solvents (NMP, DMF)
• Storage: Room temperature, store in a dry, inert atmosphere
• GHS Classification: Danger; H400

Flexible Packaging Solutions
XinChem provides a range of packaging options to accommodate diverse customer needs, from laboratory-scale quantities (5 g, 25 g, 100 g) to industrial-scale packaging (500 g, 1 kg, 25 kg, 50 kg) and bulk shipments. Customized packaging solutions are available upon request, ensuring safe handling, storage, and transportation with appropriate moisture protection.

3. Application Fields

As a versatile shelf-stable trifluoromethylating agent, Potassium Trifluoroacetate (CAS# 2923-16-2) exhibits wide application value across multiple industries:

Pharmaceutical Synthesis and Intermediates:

• Key reagent for introducing CF₃ groups into drug candidates to enhance metabolic stability and bioavailability
• Copper-catalyzed trifluoromethylation of aryl and heteroaryl iodides
• Synthesis of trifluoromethylated heterocycles including 4-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine
• Iron-catalyzed decarboxylative trifluoromethylation for the synthesis of trifluoromethyl thioethers
• Precursor for pharmaceutical intermediates with enhanced pharmacokinetic profiles

Agrochemical Development:

• Intermediate for the synthesis of fluorine-containing pesticides and crop protection agents
• Precursor for CF₃-containing agrochemical active ingredients with improved metabolic stability

Biochemical and Analytical Applications:

• Reference standard for ¹⁹F NMR spectroscopy (CF₃ signal at ~−116.5 ppm, quartet)
• Standard for quantitative ¹⁹F NMR analysis and reaction monitoring
• Reagent for biochemical assays studying enzyme activity and protein interactions
• Electrochemical sensor development

Materials Science and Electrochemistry:

• Formulation of advanced polymers and coatings with enhanced thermal stability
• Surface modification of materials
• Synthesis of fluorinated polymers and coatings with unique properties
• Electrochemical sensor development for environmental and clinical analysis

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 trifluoromethylation reaction conditions, guidance on moisture-sensitive handling and drying protocols, 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 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 organofluorine reagent synthesis and supply.
• Quality: Rigorous quality control, high purity (≥98% to ≥99%), and adherence to international standards.
• Reliability: Stable supply, competitive pricing, and timely delivery.
• Flexibility: Customized solutions to meet diverse customer needs, including anhydrous grades and custom 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

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