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Pigment Violet 38

Catalog Number DYE-PIG-0316
CAS Number 2379-75-1
Structure
Synonyms Indazin Bordeaux RRL, Tuiaprint Fast Red Violet RN
Molecular Weight 421.36
Molecular Formula C20H14Cl2O2S2
CI Number C.I.73395
Color red light purple
Lightfastness Good
Main Molecular Structure Thioindigo
Oleic Acid General
Preparation Method 2,5-Dimethyl-4-chlorophenylmercaptoacetic acid with Chlorosulfonic acid cyclization, oxidation; The intermediate is by 4-Methylbenzyl chloride using Sulfuryl chloride route (BIOS 1156,) and have to.
Properties Not soluble in ethanol and organic solvent

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