Description

(Z)-2-Bromo-2-Butene is a high-purity, versatile organobromine compound widely used as a key synthetic intermediate. Its value lies in its specific stereochemistry and reactive bromine functionality, enabling precise chemical transformations in complex synthesis. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing the butenyl moiety in a stereospecific manner.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where the (Z)-alkene configuration is required for biological activity.
• Organic Synthesis Reagent: Serves as an electrophilic allylic bromination agent in cross-coupling reactions (e.g., Heck, Suzuki) and for preparing other functionalized alkenes.
• Material Science Research: Employed in the development of novel polymers, liquid crystals, and organic electronic materials as a functional monomer.
• Flavor & Fragrance Industry: Acts as a precursor for synthesizing specific aroma compounds and flavoring agents.
• Academic & R&D Laboratories: A valuable reagent for methodological development and exploring new reaction pathways in synthetic organic chemistry.

Basic Information

Product Name	(Z)-2-Bromo-2-Butene
CAS No.	3017-68-3
Molecular Formula	C4H7Br
Molecular Weight	135.00 g/mol
Synonyms	(Z)-2-Butenyl Bromide; (Z)-Crotyl Bromide; (Z)-1-Bromo-2-butene; (Z)-2-Bromo-2-butene; (Z)-Bromo-2-butene; cis-2-Bromo-2-butene; cis-Crotyl Bromide; 2-Butene, 2-bromo-, (Z)-
EINECS	221-161-7

Quality Control

Our (Z)-2-Bromo-2-Butene is manufactured under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including GC, NMR, and IR spectroscopy, to ensure high chemical and isomeric purity. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place, away from heat sources and incompatible materials. Due to its highly volatile and light-sensitive nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (Area %)
Isomeric Purity ((Z)-isomer)	≥ 98.0% (by GC or NMR)
Water Content (KF)	≤ 0.1%
Non-volatile Residue	≤ 0.05%

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