disodium 4-amino-3-({4'-[(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonate [ Direct Black Meta | direct black meta ]
4-amino-3-({4'-[(2,4-diaminophényl)diazényl]biphényl-4-yl}diazényl)-5-hydroxy-6-(phényldiazényl)naphthalène-2,7-disulfonate de disodium [ Noir Direct Méta | noir direct méta ]