Description

1,1-Dichloro-3-Methylbutene-1 CAS NO 32363-91-0 is a specialized chlorinated olefin intermediate of significant interest in advanced organic synthesis. Its unique structure, featuring both a dichloromethyl group and an unsaturated bond, makes it a valuable precursor for constructing complex molecular frameworks. This compound is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise functional group transformations.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing chlorinated alkyl chains or as a precursor for heterocyclic compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where its chlorinated structure contributes to biological activity.
• Specialty Polymer Monomer: Acts as a functional monomer or cross-linking agent in the development of specialty polymers with tailored properties like chemical resistance or specific reactivity.
• Organic Synthesis Reagent: Employed in research laboratories for Diels-Alder reactions, nucleophilic substitution reactions, and as a starting material for synthesizing more complex chlorinated derivatives.
• Flavor & Fragrance Ingredient Precursor: Utilized in the multi-step synthesis of certain aroma chemicals and fragrance molecules.
• Material Science Research: Investigated for use in advanced material applications, including organic semiconductors or liquid crystals.

Basic Information

Item	Detail
Product Name	1,1-Dichloro-3-Methylbutene-1
CAS No.	32363-91-0
Molecular Formula	C5H8Cl2
Molecular Weight	139.02 g/mol
Synonyms	1,1-Dichloro-3-methyl-1-butene; 3-Methyl-1,1-dichloro-1-butene; 1-Butene, 1,1-dichloro-3-methyl-; (3-Methylbut-1-en-1-ylidene) dichloride; NSC 60556
EINECS	Contact for details

Quality Control

Our production of 1,1-Dichloro-3-Methylbutene-1 adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to verify identity and quantify impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full transparency and compliance with your internal quality standards.

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
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~1.10 g/mL
Boiling Point	~150-155°C

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