Description

7-Chloro-3-Heptyne is a versatile halogenated alkyne building block with the CAS registry number 51575-85-0. This compound is valued for its terminal alkyne and chloro functionalities, which enable diverse chemical transformations in advanced organic synthesis. It is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty materials industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring alkyne coupling reactions (e.g., Sonogashira, Click Chemistry).
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators where the chloroalkyne moiety introduces specific biological activity.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of advanced polymers, dendrimers, and functional materials with tailored properties.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex natural products, ligands for catalysis, and molecular probes.
• Chemical Biology Tool: Utilized in bioconjugation and labeling strategies for proteins, peptides, and other biomolecules due to its reactive alkyne group.

Basic Information

Product Name	7-Chloro-3-Heptyne
CAS No.	51575-85-0
Molecular Formula	C7H11Cl
Molecular Weight	130.62 g/mol
Synonyms	3-Heptyne, 7-chloro-; 7-Chlorohept-3-yne; 1-Chloro-5-hexyne; 5-Hexyn-1-yl chloride; Chloroheptyne; Hept-3-yn-1-yl chloride
EINECS	Contact for details

Quality Control

Our 7-Chloro-3-Heptyne is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and impurity profiles to meet your specific research or process requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature and reactivity, it is recommended to use under an inert atmosphere for prolonged handling.

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.