Name:C.I.Direct Black 97,C.I.35810
Molecular Structure: Multi-azo class
Molecular Weight: 1082.80
CAS Registry Number:6409-86-5
Manufacturing Methods : 5-Amino-2-hydroxybenzoic acid diazotization, and 8-Aminonaphthalene-2-sulfonic acid coupling, product and diazotization, and 2,5-Dimethoxyaniline coupling, and then re-bis-azo compound nitriding, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and in acidic conditions with diazotized 2-Amino-5-nitrobenzoic acid coupling.
Properties and Applications: blue ash.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
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