1-p-Sulfophenylazo-2-naphthol, monosodium salt 11550 Orange 161628-32-6 2-Naphthol Orange II 4-((2-Hydroxy-1-naphthalenyl)azo)benzenesulfonic acid monosodium salt 4-((2-Hydroxy-1-naphthalenyl)azo)benzenesulfonic acid, monosodium salt 4-((2-Hydroxy-1-naphthyl)azo)benzenesulfonic acid, sodium salt 633-96-5 75025-97-7 84842-86-4 Acid Leather Orange Extra Acid Leather Orange Extra G Acid Leather Orange Extra PRW Acid Leather Orange G Acid Leather Orange PRW Acid Orange Acid Orange A Acid orange 7 Acid orange ii Acilan Orange II Airedale Orange II Amacid Orange Y Atul Acid Orange II Benzenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt Betanaphthol Orange Brasilan Orange A Bucacid Orange A C.I. 15510 C.I. Acid Orange 7 C.I. Acid Orange 7, monosodium salt CCRIS 2427 CI 15510