Description

3,3',5-Trichlorobisphenola is a halogenated bisphenol derivative, a key chemical intermediate valued for its role in synthesizing advanced polymers and flame retardants. Its chlorinated phenolic structure provides enhanced thermal stability and reactivity, making it a critical building block for high-performance materials. This compound is essential for manufacturers in the polymer, electronics, and specialty chemical industries seeking to develop products with improved fire resistance and mechanical properties.

Application

• Flame Retardant Intermediate: A crucial precursor in the synthesis of halogenated flame retardants for engineering plastics, epoxy resins, and polycarbonates.
• Polymer Modification: Used to introduce chlorinated aromatic units into polymer backbones to enhance thermal stability and chemical resistance.
• Epoxy Resin Curing Agent: Serves as a reactive modifier and hardener component in specialized epoxy systems for coatings and composites.
• Specialty Chemical Synthesis: An important starting material for agrochemicals, pharmaceuticals, and other fine chemicals requiring a trichlorinated biphenyl core.
• Adhesive & Sealant Formulations: Incorporated to improve the fire-retardant properties of high-performance adhesives and sealants.
• Research & Development: Utilized in laboratories for developing new materials with specific halogenated aromatic functionalities.

Basic Information

Product Name	3,3',5-Trichlorobisphenola
CAS No.	40346-55-2
Molecular Formula	C15H11Cl3O2
Molecular Weight	329.61 g/mol
Synonyms	3,3',5-Trichloro-4,4'-dihydroxybiphenyl; 3,3',5-Trichlorobiphenyl-4,4'-diol; 4,4'-(3,3',5-Trichlorobiphenyl)diol; 4,4'-Dihydroxy-3,3',5-trichlorobiphenyl; TCPBP; Trichlorobisphenol A (variant); Bisphenol A, 3,3',5-trichloro-
EINECS	254-896-5

Quality Control

Our 3,3',5-Trichlorobisphenola is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet precise customer specifications. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	165 - 170 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm

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