C.I.Acid Blue 158A

CAS NO.：6370-12-3
Empirical Formula: C20H12CrN3NaO8S2
Molecular Weight: 561.43
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-31 14:38:37

What is C.I.Acid Blue 158A?

Preparation

4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazo, and?8-Hydroxynaphthalene-1-sulfonamide coupling, and then make its formed chromium complex.

Properties and Applications

green light blue. Soluble in water for green light blue. The strong sulfuric acid for green, diluted to blue. Join the hydrochloric acid solution for blue solution and precipitation; Add sodium hydroxide for purple.

Properties of C.I.Acid Blue 158A

EPA Substance Registry System

Chromate(1-), [4-[[8-(aminosulfonyl)-1-(hydroxy-.kappa.O)-2-naphthalenyl]azo-.kappa.N1]-3-(hydroxy-.kappa.O)-1-naphthalenesulfonato(3-)]hydroxy-, sodium, (T-4)- (6370-12-3)

Safety information for C.I.Acid Blue 158A

Computed Descriptors for C.I.Acid Blue 158A

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Chromate(3-), bis[3-(hydroxy-κO)-4-[[1-(hydroxy-κO)-2-naphthalenyl]azo-κN1]-1-naphthalenesulfonato(3-)]-, trihydrogen