Description

1,2-Dibromoethylene CAS NO 540-49-8 is a halogenated organic compound primarily used as a versatile chemical intermediate and reagent in organic synthesis. Its value lies in its ability to introduce bromine atoms and ethylene functionality into target molecules, enabling the creation of complex chemical architectures. This product is essential for research and development laboratories, as well as industrial-scale manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to build advanced molecular structures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides, where its bromine atoms contribute to biological activity.
• Organic Synthesis Reagent: Acts as a versatile reagent in cross-coupling reactions, cycloadditions, and as a precursor for other functionalized olefins.
• Polymer & Material Science: Employed as a monomer or cross-linking agent in the development of specialty polymers and flame-retardant materials.
• Chemical Research: A valuable tool in academic and industrial R&D for exploring new synthetic methodologies and creating novel compounds.
• Fine Chemical Production: Integral to the manufacture of dyes, pigments, and other performance chemicals requiring specific brominated intermediates.

Basic Information

Product Name	1,2-Dibromoethylene
CAS No.	540-49-8
Molecular Formula	C2H2Br2
Molecular Weight	185.85 g/mol
Synonyms	Acetylene Dibromide; 1,2-Dibromoethene; sym-Dibromoethylene; (E)-1,2-Dibromoethene; (Z)-1,2-Dibromoethene; Dibromoacetylene (obsolete); Ethylene Dibromide (isomer specific); EINECS 208-748-2
EINECS	208-748-2

Quality Control

Our 1,2-Dibromoethylene is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay by GC/HPLC, identity confirmation (IR), and impurity profiling. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, bases, and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture ingress and volatilization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Isomer Ratio (E/Z)	Specified on COA
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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