Molecular Formula

Trisodium (6or7)-((2,4-diaminophenyl)azo)-3-((4-((4-(((6or7)-((2,4-diaminophenyl)azo)-1-hydroxy-3-sulphonato-2-naphthyl)azo)phenyl)amino)-3-sulphonatophenyl)azo)-4-hydroxynaphthalene-2-sulphonate

CAS:94021-20-2

Formula:C44H32N13Na3O11S3

DIRECT BLACK 22

CAS:6473-13-8

Formula:C44H32N13Na3O11S3

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