Description

2-(Fluorosulfonyl)Difluoroacetic Acid is a highly reactive fluorinated building block and fluorosulfonylation reagent. This compound is valued for its ability to introduce both difluoroacetate and fluorosulfonyl functional groups, enabling the synthesis of complex molecules with tailored properties. It is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel drug candidates, particularly those requiring fluorinated motifs for enhanced metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides where the fluorosulfonyl and difluoroacetyl groups contribute to biological activity.
• Lithium-Ion Battery Electrolyte Additive: Serves as a precursor for synthesizing specialized salts and additives that improve electrolyte stability and battery performance.
• Polymer & Material Science: Employed in the modification of polymers and surfaces to impart unique chemical resistance, low surface energy, or other fluorinated characteristics.
• Organic Synthesis Reagent: Acts as a versatile reagent for fluorosulfonylation and difluoroacetylation reactions in research and fine chemical production.

Basic Information

Product Name	2-(Fluorosulfonyl)Difluoroacetic Acid
CAS No.	1717-59-5
Molecular Formula	C2HF3O4S
Molecular Weight	178.08 g/mol
Synonyms	Difluoro(fluorosulfonyl)acetic Acid; Fluorosulfonyldifluoroacetic Acid; 2-Fluorosulfonyl-2,2-difluoroacetic Acid; (Fluorosulfonyl)difluoroethanoic Acid; FS-DFA; FSO2CF2COOH
EINECS	Contact for details

Quality Control

Every batch of 2-(Fluorosulfonyl)Difluoroacetic Acid is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity requirements for research and industrial synthesis. A detailed Certificate of Analysis (COA) is available for each lot, confirming identity, purity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic and highly volatile nature, the container should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to minimize moisture uptake and decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.