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TDCM CAS 100486-97-3 High Sensitivity Stable Biimidazole Photoinitiator for UV Curing

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TDCM CAS 100486-97-3 High Sensitivity Stable Biimidazole Photoinitiator for UV Curing

Brand Name:	Xuanming
Model Number:	100486-97-3
MOQ:	500g
Price:	20USD
Packaging Details:	foil bag
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

Jiangsu

CAS Number:

100486-97-3

Chemical Name:

2,2',4-Tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-biimidazole (TDCM)

Molecular Formula:

C₄₁H₂₈Cl₃N₄O₂

Molecular Weight:

727.05 G/mol

Purity:

≥99.0% (HPLC)

Storage Condition:

Sealed Cool Dark Dry Environment, Avoid Direct Light And Moisture

Supply Ability:

1000kg

Product Description

TDCM CAS 100486-97-3 High Sensitivity Stable Biimidazole Photoinitiator for UV Curing

Product Overview

2,2',4-Tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-biimidazole, commonly abbreviated as TDCM, is an aryl-substituted biimidazole photoactive compound. It generates active free radicals under ultraviolet excitation to initiate polymerization of unsaturated monomers, delivering high photosensitivity and favorable thermal stability. This crystalline photoinitiator serves as a core functional material widely adopted in photocuring systems and photosensitive material fabrication.

Product Specification Table

Item	Parameter
CAS Number	100486-97-3
Chemical Name	2,2',4-Tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-biimidazole (TDCM)
Molecular Formula	C₄₁H₂₈Cl₃N₄O₂
Molecular Weight	727.05 g/mol
Appearance	Light yellow crystalline powder
Melting Point	180–185 °C
Purity	≥99.0% (HPLC)
Storage Condition	Sealed cool dark dry environment, avoid direct light and moisture

Product Properties

This biimidazole derivative exists as uniform light yellow crystalline powder at room temperature. It dissolves well in chlorinated hydrocarbons, aromatic solvents and ketone systems, with limited solubility in aliphatic alcohols and negligible solubility in water. Under ultraviolet irradiation within 350–400 nm wavelength, the molecule undergoes homolytic cleavage to produce active free radicals, which effectively trigger polymerization of unsaturated resin systems. It features wide absorption range and excellent thermal stability, and maintains reliable reactivity under normal room temperature storage. Airtight light-proof packaging is required to prevent premature decomposition and activity attenuation.

Main Applications

Core photoinitiator for UV-curable inks, protective coatings and photoresist formulations
Functional raw material for photosensitive imaging materials and dry film photoresist production
Applied in lithography processes for printed circuit boards and microelectronic devices
Radical polymerization initiator for laboratory polymer synthesis and material research

Q1: What precautions apply to storage and operation?

A: The compound is sensitive to ultraviolet light. Store in tightly sealed containers in a cool, dry and dark place. Avoid prolonged exposure to strong light during handling, and wear appropriate personal protective equipment.

Q2: Can supporting test documents be provided?

A: Certificate of Analysis, HPLC purity report and safety data sheet are available upon formal request.

Q3: What curing systems is it compatible with?

A: It fits most unsaturated resin and acrylate-based UV curing systems. Matching with suitable sensitizers can further improve its initiation efficiency.

TDCM CAS 100486-97-3 High Sensitivity Stable Biimidazole Photoinitiator for UV Curing

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TDCM CAS 100486-97-3 High Sensitivity Stable Biimidazole Photoinitiator for UV Curing