12239-88-2 2-Naphthalenesulfonicacid, 6-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]-3-[[4-[(2,4-diami

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Basic

CAS No. 12239-88-2
Product Name 2-Naphthalenesulfonicacid, 6-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-4-hydroxy-,disodium salt (9CI)
Synonyms C.I. DirectBlack 141 (8CI); C.I. 31546; Chlorazol Black PB
Molecular Formula C32H25N9O7S2・2Na

Physical property