1333 Orange 4-((4-Hydroxy-1-naphthalenyl)azo)benzenesulfonic acid, monosodium salt 4-((4-Hydroxy-1-naphthalenyl)azo)benzenesulphonic acid, monosodium salt 4-(p-Sulfophenylazo)-1-naphthol, sodium salt 4-p-Sulfophenylazo-1-naphthol monosodium salt 4-p-Sulphophenylazo-1-naphthol, monosodium salt 523-44-4 67621-59-4 A.F. Orange No. 1 AF Orange No. 1 Acid Leather Orange I Acid Orange 20 Acid Orange I Acid phosphine CL Aizen Food Orange No. 1 Aizen Naphthol Orange I Aizen Orange I Benzenesulfonic acid, 4-((4-hydroxy-1-naphthalenyl)azo)-, monosodium salt Benzenesulfonic acid, p-((4-hydroxy-1-naphthyl)azo)-, sodium salt C.I. 14600 C.I. 150 C.I. Acid Orange 20 C.I. Acid Orange 20, monosodium salt C.I. Acid Orange 20, monosodium salt (8CI) CI ACID ORANGE 20 Certiqual Orange I Dye Orange No. 1 EINECS 208-346-6 Eniacid