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Pigment Red 94

Catalog Number DYE-PIG-0431
Structure
Synonyms Helio Fast Toner3 BN
Molecular Weight 393.31
Molecular Formula C18H10Cl2O2S2
CI Number C.I.73360
Color red
Main Molecular Structure Thioindigo
Preparation Method 6-Bromo-4-methylbenzo[b]thiophen-3(2H)-one {(use of carboxy amide route (FIAT1313, 2192) or with Herz sulfur dichloride method (FIAT 764-PB 25626, fr. 2069) system} oxidation.
Properties Insoluble in water, ethanol and acetone

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