Description

3-Chloro-3-Methyl-1-Butyne is a versatile halogenated alkyne building block with significant synthetic utility. Its reactive terminal alkyne and tertiary chloride functionalities make it a valuable intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Organic Synthesis Reagent: Serves as a versatile precursor for Sonogashira coupling, click chemistry, and other cross-coupling reactions.
• Material Science: Employed in the development of specialty polymers, liquid crystals, and functional organic materials.
• Chemical Research: A fundamental reagent in academic and industrial R&D laboratories for exploring new synthetic methodologies.
• Fine Chemical Production: Integral to the manufacture of complex flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	3-Chloro-3-Methyl-1-Butyne
CAS No.	1111-97-3
Molecular Formula	C5H7Cl
Molecular Weight	102.56 g/mol
Synonyms	3-Chloro-3-methylbut-1-yne; 1-Chloro-3,3-dimethyl-1-propyne; 3-Methyl-3-chloro-1-butyne; tert-Butylchloroacetylene; Chlorodimethylpropyne; (Chloroethynyl)dimethylmethane; 3-Chloro-3-methyl-1-butyn
EINECS	Contact for details

Quality Control

Our 3-Chloro-3-Methyl-1-Butyne is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, NMR, and FTIR, to verify identity and assay. Certificates of Analysis (COA) detailing all specifications 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, well-ventilated area away from heat sources and incompatible materials such as strong acids, bases, and oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term 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 (at 20°C)	0.95 - 0.98 g/mL
Refractive Index (n20/D)	1.440 - 1.445

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