Description

Benzene,1,1'-(1,2-Ethynediyl)Bis[3-Chloro- (CAS NO 5216-30-8) is a specialized chlorinated aromatic compound featuring an ethynediyl bridge, which imparts unique structural and electronic properties. This compound is valued for its role as a versatile advanced chemical intermediate in the synthesis of complex organic molecules and functional materials. It is primarily sought by pharmaceutical, agrochemical, and material science research and development sectors for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a rigid, conjugated backbone.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and pesticides, where its chlorinated aromatic structure contributes to biological activity.
• Material Science Precursor: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and advanced organic electronic materials.
• Ligand and Catalyst Development: Employed in organometallic chemistry for the preparation of complex ligands and catalysts used in coupling reactions and asymmetric synthesis.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes, pigments, and optical brighteners due to its conjugated system.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and synthesizing novel chemical entities.

Basic Information

Product Name	Benzene,1,1'-(1,2-Ethynediyl)Bis[3-Chloro-
CAS No.	5216-30-8
Molecular Formula	C14H8Cl2
Molecular Weight	247.12 g/mol
Synonyms	1,1'-(1,2-Ethynediyl)bis[3-chlorobenzene]; 3,3'-(1,2-Ethynediyl)bis(chlorobenzene); 1,2-Bis(3-chlorophenyl)ethyne; 3,3'-Dichlorodiphenylacetylene; Bis(3-chlorophenyl)acetylene; 3-Chlorophenylacetylene dimer (asymmetric); (3-Chlorophenyl)ethynyl(3'-chlorophenyl)acetylene
EINECS	Contact for details

Quality Control

Our Benzene,1,1'-(1,2-Ethynediyl)Bis[3-Chloro- is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality system is designed to support cGMP requirements for use as a pharmaceutical intermediate.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber-colored or stored in light-resistant secondary packaging.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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