Description

2-Bromo-2-Butene is a highly reactive halogenated alkene, a versatile chemical intermediate prized for its ability to introduce the 2-butenyl moiety into more complex molecular structures. Its primary commercial value lies in its utility as a key building block in organic synthesis, particularly for the pharmaceutical and agrochemical industries. This compound is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), specialty chemicals, and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of various active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and other crop protection agents.
• Organic Synthesis Reagent: Serves as an alkylating agent and a precursor for Grignard reactions and other coupling reactions in research and development.
• Polymer & Material Science: Employed as a monomer or cross-linking agent in the development of specialty polymers and advanced materials.
• Chemical Research: Utilized in academic and industrial laboratories for method development and the creation of novel organic compounds.
• Flavor & Fragrance Industry: Acts as an intermediate in the synthesis of certain aroma chemicals.

Basic Information

Product Name	2-Bromo-2-Butene
CAS No.	3017-71-8
Molecular Formula	C4H7Br
Molecular Weight	135.00 g/mol
Synonyms	2-Butenyl bromide; Crotyl bromide; (E)-1-Bromo-2-butene; (Z)-1-Bromo-2-butene; Bromobutene; 2-Bromobut-2-ene; 1-Bromo-2-butene; 2-Butene, 2-bromo-
EINECS	221-161-7

Quality Control

Our 2-Bromo-2-Butene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each 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. Due to its highly volatile nature, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent degradation and maintain purity. Recommended storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Isomer Ratio (E/Z)	Contact for details
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~1.36 g/mL
Boiling Point	~98-100°C

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