Description

2-Butene, 1-Bromo-, (2Z)- (9Ci) is a halogenated alkene of significant interest in synthetic organic chemistry. This compound serves as a versatile building block, enabling the introduction of both a bromine atom and a defined alkene geometry into molecular frameworks. It is primarily sought after by researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries for applications such as cross-coupling reactions, nucleophilic substitutions, and as a precursor for more complex intermediates.

Application

• Pharmaceutical Intermediate: A key synthon for constructing active pharmaceutical ingredients (APIs) via Suzuki, Heck, or other palladium-catalyzed cross-coupling reactions.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the bromo-alkene functionality allows for further structural elaboration.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for the synthesis of complex natural products, fine chemicals, and novel materials.
• Ligand and Catalyst Precursor: Acts as a starting material for the synthesis of specialized ligands used in homogeneous catalysis.
• Polymer Modification: Can be used to introduce reactive sites into polymer chains for functionalization or cross-linking.

Basic Information

Product Name	2-Butene, 1-Bromo-, (2Z)- (9Ci)
CAS No.	39616-19-8
Molecular Formula	C4H7Br
Molecular Weight	135.00 g/mol
Synonyms	(Z)-1-Bromo-2-butene; cis-1-Bromo-2-butene; 1-Bromo-cis-2-butene; (Z)-2-Buten-1-yl bromide; (2Z)-1-Bromo-2-butene; Bromo-cis-2-butene; cis-2-Butenyl bromide
EINECS	Contact for details

Quality Control

Every batch of 2-Butene, 1-Bromo-, (2Z)- (9Ci) is produced and tested under stringent quality management protocols. Our products undergo rigorous analytical testing, including GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency meet the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

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 when not in use to prevent evaporation and concentration changes. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Isomeric Purity (Z-isomer)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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