Description

4,4'-Isopropylidenebis[o-Chlorophenol] is a halogenated bisphenol derivative of significant industrial importance. This compound serves as a versatile chemical intermediate and functional additive, valued for its unique structural properties. It is primarily utilized in the production of high-performance polymers, specialty resins, and as an intermediate in fine chemical synthesis for sectors including advanced materials and industrial manufacturing.

Application

• Key intermediate in the synthesis of high-performance polycarbonate resins and engineering plastics.
• Building block for flame retardants and polymer additives.
• Precursor in the manufacture of epoxy resin hardeners and cross-linking agents.
• Intermediate for pharmaceutical and agrochemical active ingredients.
• Used in the production of dyes, pigments, and specialty colorants.
• Component in the formulation of adhesives and sealants.
• Starting material for liquid crystal polymers (LCPs) and other advanced materials.
• Research and development chemical in organic synthesis laboratories.

Basic Information

Product Name	4,4'-Isopropylidenebis[o-Chlorophenol]
CAS No.	79-98-1
Molecular Formula	C15H14Cl2O2
Molecular Weight	297.18 g/mol
Synonyms	2,2-Bis(3-chloro-4-hydroxyphenyl)propane; Tetrachlorobisphenol A; 4,4'-(1-Methylethylidene)bis[2-chlorophenol]; Bisphenol A, tetrachloro derivative; Tetrachlorodiphenylolpropane; TC-BPA; NSC 403697; 2,2-Bis(4-hydroxy-3-chlorophenyl)propane
EINECS	201-245-8

Quality Control

Our 4,4'-Isopropylidenebis[o-Chlorophenol] is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, GC, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality parameters. Our production adheres to cGMP principles where applicable, ensuring reliability for demanding industrial and R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 160 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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