Description

1-Bromo-1,1-Difluoroethane is a halogenated alkane building block of significant importance in advanced organic synthesis. Its value lies in its ability to introduce both bromine and fluorine atoms, enabling the construction of complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of fluorinated active pharmaceutical ingredients (APIs), where the fluorine atom enhances metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in the production of modern pesticides and herbicides, leveraging the difluoromethylene group to improve efficacy and environmental profile.
• Organic Synthesis Building Block: Serves as a versatile reagent for introducing the -CF2Br moiety in nucleophilic substitution and coupling reactions.
• Fluoropolymer Modification: Employed in the development and modification of specialty polymers to impart specific chemical resistance or surface properties.
• Refrigerant & Propellant Research: Investigated as a potential component or precursor in next-generation, low-global-warming-potential fluorocarbon blends.
• Liquid Crystal & Electronic Chemical Production: Acts as a fluorinating agent in the synthesis of compounds for display technologies and electronic applications.

Basic Information

Product Name	1-Bromo-1,1-Difluoroethane
CAS No.	420-43-9
Molecular Formula	C2H3BrF2
Molecular Weight	144.95 g/mol
Synonyms	Ethane, 1-bromo-1,1-difluoro-; Difluorobromoethane; 1,1-Difluoro-1-bromoethane; HCFC-142B1; Freon 142B1; R-142B1; Halon 2402; Bromodifluoroethane
EINECS	206-996-0

Quality Control

Our 1-Bromo-1,1-Difluoroethane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR), to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong bases and reactive metals. Due to its highly volatile nature, ensure containers are kept upright and sealed when not in use. 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 (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	1.70 - 1.75 g/mL
Boiling Point	Approx. 25-30°C

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