Description

4-Chloro-1-Butene is a versatile halogenated alkene intermediate with significant utility in organic synthesis. Its reactive chloro and alkene functionalities make it a valuable building block for constructing more complex molecules across several high-value industries. This compound is particularly essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-purity intermediates for their production processes.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs) and various fine chemicals.
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators.
• Polymer & Resin Modification: Acts as a monomer or cross-linking agent in the manufacture of specialty polymers and coatings.
• Organic Synthesis Building Block: Employed in alkylation, coupling, and cyclization reactions to introduce butenyl or chlorinated segments.
• Lubricant & Fuel Additive Precursor: Utilized in the development of performance-enhancing additives.
• Chemical Research & Development: A valuable reagent for exploratory chemistry and process development in R&D laboratories.

Basic Information

Product Name	4-Chloro-1-Butene
CAS No.	927-73-1
Molecular Formula	C4H7Cl
Molecular Weight	90.55 g/mol
Synonyms	1-Butene, 4-chloro-; But-3-en-1-yl chloride; 3-Butenyl chloride; 4-Chlorobut-1-ene; γ-Chlorobutylene; Chlorobutene; NSC 60545
EINECS	213-165-4

Quality Control

Our 4-Chloro-1-Butene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) for assay and impurity profiling. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your 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, keep containers tightly sealed and handle in a fume hood. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	0.92 - 0.94 g/mL
Refractive Index (n20D)	1.435 - 1.445

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