Description

3-Methyl-1,2-Butadiene is a branched-chain hydrocarbon diene with the CAS number 598-25-4, valued for its high reactivity and volatility which make it a versatile intermediate in organic synthesis. Its unique structure is crucial for introducing specific alkyl branches into polymer chains and complex organic molecules. This compound is primarily sought by manufacturers in the specialty chemical, polymer, and pharmaceutical research sectors for developing advanced materials and fine chemicals.

Application

• Chemical Intermediate: A key building block for synthesizing specialized polymers, resins, and fine chemicals.
• Polymer Modification: Used as a comonomer to introduce branching and modify the properties of synthetic rubbers and elastomers.
• Pharmaceutical Research: Serves as a precursor in the development of active pharmaceutical ingredients (APIs) and other bioactive compounds.
• Agrochemical Synthesis: Employed in the production of certain pesticides and herbicides.
• Fragrance and Flavor Industry: Acts as an intermediate for creating specific aroma chemicals.
• Adhesive and Sealant Formulation: Contributes to the performance characteristics of high-performance adhesives.
• Academic and Industrial R&D: Utilized in research for novel material development and organic reaction studies.

Basic Information

Product Name	3-Methyl-1,2-Butadiene
CAS No.	598-25-4
Molecular Formula	C5H8
Molecular Weight	68.12 g/mol
Synonyms	Isoprene (Note: This is the common name for 2-Methyl-1,3-butadiene; 3-Methyl-1,2-butadiene is an isomer); 1,2-Butadiene, 3-methyl-; 3-Methylbuta-1,2-diene; β-Methylbutadiene; 1-Methyl-1,2-butadiene (tautomer); Contact for additional trade names.
EINECS	209-910-3

Quality Control

Our 3-Methyl-1,2-Butadiene is produced and handled under stringent quality management protocols. Each batch is analyzed to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee supply consistency and reliability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated area away from heat, sparks, and open flames. Recommended storage temperature is 2-8°C to minimize evaporation and polymerization risk. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Water Content (KF)	≤ 0.1%
Inhibitor (if added)	Contact for details

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