Description

4-Chloro-2-Methylbuten-3-Ine is a specialized halogenated alkyne building block of significant interest in advanced organic synthesis. This compound matters for its role as a key precursor in the development of complex molecular architectures, particularly in pharmaceutical and agrochemical research. Industries that need this high-value intermediate include fine chemical manufacturers, R&D laboratories, and companies developing novel active ingredients, where its unique reactive profile enables innovative synthetic pathways.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Organic Synthesis Reagent: Employed in laboratories for cycloaddition reactions, Sonogashira couplings, and other metal-catalyzed transformations to create complex organic molecules.
• Ligand and Catalyst Development: Utilized in the preparation of novel ligands and organometallic catalysts for asymmetric synthesis.
• Flavor and Fragrance Industry: Potential intermediate for the synthesis of specific aroma chemicals and flavor compounds.

Basic Information

Product Name	4-Chloro-2-Methylbuten-3-Ine
CAS No.	51951-41-8
Molecular Formula	C5H7Cl
Molecular Weight	102.56 g/mol
Synonyms	4-Chloro-2-methyl-3-butyn-1-ene; 4-Chloro-2-methylbut-3-en-1-yne; 2-Methyl-4-chloro-3-buten-1-yne; 1-Chloro-3-methyl-3-buten-1-yne; 3-Buten-1-yne, 4-chloro-2-methyl-; (Chloromethyl)isopropenylacetylene
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-Methylbuten-3-Ine is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is 2-8°C for extended stability. Keep container tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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