Benzoicacid, 2-[[1,8-dihydroxy-7-[(2-hydroxy-3,5-dinitrophenyl)azo]-3,6-disulfo-2-naphthalenyl]azo]-(9CI); Benzoic acid,o-[[1,8-dihydroxy-7-[(2-hydroxy-3,5-dinitrophenyl)azo]-3,6-disulfo-2-naphthyl]azo]-(8CI); Picramine K
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