dye|World dye variety

Name:C.I.Acid Black 102,C.I.20266

Molecular Structure: Double azo,Metal Complexes

C.I.Acid Black 102,C.I.20266,CAS 6408-06-6/77031-21-1,851.88,C22H13ClN5NaO9S

Molecular Formula:C₂₂H₁₃ClN₅NaO₉S

Molecular Weight: 851.88

CAS Registry Number:6408-06-6/77031-21-1

Manufacturing Methods : 4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and Resorcinol in alkaline conditions coupled, 2-Amino-4-chlorophenol diazo, and these compounds in alkaline conditions coupling, and then turn it into 1:2 chromium complex.

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