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Pigment Red 57:3

Catalog Number DYE-PIG-0465
CAS Number 55491-44-6
Structure
Synonyms Flexivefse Red 57:3 heat stable,Lithol Rubine 4B Toner
Molecular Weight 386.38
Molecular Formula C18H14N2O6S
CI Number C.I.15850:3
Color blue light red.
Main Molecular Structure Single azo
Preparation Method 2-Amino-5-methylbenzenesulfonic acid diazotization, and 3-Hydroxy-2-naphthoic acid coupling, and then into strontium salt.

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