Description

2-Butene CAS NO 624-64-6 is a highly versatile, four-carbon alkene hydrocarbon that exists as a mixture of cis and trans isomers. Its primary value lies in its role as a crucial chemical intermediate and monomer in large-scale industrial synthesis. This highly volatile compound is essential for manufacturers in the petrochemical, polymer, and specialty chemical sectors seeking reliable, high-purity feedstocks for downstream processes.

Application

• Chemical Synthesis Intermediate: A key building block for producing a wide range of derivatives, including butylene oxide, secondary butyl alcohol, and methyl ethyl ketone (MEK).
• Polymer & Co-polymer Production: Used as a comonomer in the manufacture of linear low-density polyethylene (LLDPE) and other polyolefins to modify polymer properties.
• Fuel & Gasoline Additive Component: Employed in alkylation processes to produce high-octane blending components for gasoline.
• Solvent & Extraction Agent: Utilized in certain extraction processes and as a solvent in specialized organic synthesis due to its selective solvency.
• Calibration & Laboratory Standard: Serves as a reference standard in gas chromatography (GC) and for calibrating analytical instruments in research and quality control laboratories.
• Organic Peroxide Manufacture: Acts as a raw material in the production of certain organic peroxides used as initiators and cross-linking agents.

Basic Information

Product Name	2-Butene
CAS No.	624-64-6
Molecular Formula	C4H8
Molecular Weight	56.11 g/mol
Synonyms	But-2-ene; β-Butylene; 2-Butylene; Pseudobutylene; sym-Methylethylethylene; (E)-2-Butene; (Z)-2-Butene; trans-2-Butene; cis-2-Butene
EINECS	210-855-3

Quality Control

Our 2-Butene is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as isomer composition, purity, and impurity profiles. Our quality systems are designed to meet the rigorous demands of industrial-scale chemical manufacturing and research applications.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and flammable nature, store in a cool, well-ventilated area away from heat, sparks, and open flames. Cylinders should be secured upright in a location compliant with local regulations for flammable gases. Keep container tightly sealed when not in use to prevent loss of product and ingress of moisture.

Specification

Item	Specification
Appearance	Colorless gas
Identification (IR)	Conforms
Purity (GC Area %)	≥ 99.0%
Composition (cis-2-Butene)	Contact for details
Composition (trans-2-Butene)	Contact for details
1-Butene	≤ 0.5%
Isobutene	≤ 0.5%
Water Content	≤ 50 ppm

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