1718-34-9 5-(p-Nitrophenylazo)salicylic acid sodium salt Benzoic acid, 2-hydroxy-5-[(4-nitrophenyl)azo]-, monosodium salt C.I. Mordant Orange 1 C.I. Mordant Orange 1, monosodium salt Mordant Yellow 3R NSC4991 Salicylic acid, 5-[(p-nitrophenyl)azo]-, monosodium salt Salicylic acid, 5-[(p-nitrophenyl)azo]-, sodium salt Sodium p-nitrobenzeneazosalicylate