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Pigment Red 193

Catalog Number DYE-PIG-0392
CAS Number 12227-62-2
Structure
Synonyms Neelilake Amaranth,Conalake Amaranth
Molecular Weight 538.53
Molecular Formula C20H14N2O10S3
CI Number C.I.16185:1
Color blue light red.
Lightfastness General
Main Molecular Structure Single azo
Preparation Method 3-Hydroxynaphthalene-2,7-disulfonic acid diazotization, and 4-Aminonaphthalene-1-sulfonic acid coupling, and then translate into aluminum salt.
Properties With C.I.Acid Red 27 and the same chemical structure (aluminum salt).

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