Synonyms: Benzenesulfonicacid, 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo)-, sodium salt (6CI);Benzenesulfonic acid, 2,4-diamino-5-[(2-hydroxy-5-nitrophenyl)azo]-, monosodiumsalt (9CI);C.I. Mordant Brown 33 (7CI);C.I. Mordant Brown 33, monosodium salt(8CI);Acid Anthracene Brown RH;Acid Anthracene Brown RHA;Acid Chrome Brown2R;Acid Chrome Brown R;Acid Chrome Brown RH;Acid Leather Brown TV;AlizarineChrome Brown RH;Alizarol Brown RH;Anthracene Acid Brown RH;Anthracene BrownRH;Atlantichrome Brown RH;Azochromol Brown RH;C.I. 13250;Calcochrome BrownRH;Calcochrome Brown RHL;Chromacid Fast Brown 2R;Chromaven Brown RH;Chromazine Brown TV;Chrome Brown RH;Chrome Brown RHK;Chrome Fast Brown 2R;Chrome Fast Brown RH;Chrome Fast Brown TV;Cromal Brown RH;Curolite Brown R;Dermachrome Brown 2R;Diacromo Brown TVR;Diadem Chrome Brown RH;Diamond BrownRH;Diamond Brown RH extra;Durochrome Brown RH;Eriochrome Brown R;FastChrome Brown RH;Fenakrom Brown RH;Hispacrom Brown RH;Java Chrome Brown SRN;Kayaku Chrome Brown RH;Kenachrome Brown RH;Lighthouse Chrome Brown RH;Magracrom Brown R;Mitsui Chrome Brown RH;Omega Chrome Brown2R;Omega Chrome Brown 2RI;Pontachrome Brown HN;Sodium2-hydroxy-5-nitro-2,4-diaminoazobenzene-5-sulfonate;Solochrome Brown RH;Solochrome Leather Brown RH;Sunchromine Brown RH;Telon Chrome Brown R;Tertrochrome Brown RH;