α-Naphthol Orange

CAS: 523-44-4

Ref. 3B-N0308

Product Information

• Name: α-Naphthol Orange
• Synonyms: Acid Orange 20, Orange I, Tropaeolin OOO-1, 1333 Orange, 4-p-Sulfophenylazo-1-naphthol monosodium salt, A.F. Orange No. 1, Acid Leather Orange I, Acid Orange I, Aizen Orange I, Benzenesulfonic acid, 4-[(4-hydroxy-1-naphthalenyl)azo]-, monosodium salt, Benzenesulfonic acid, 4-[2-(4-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1), Certiqual Orange I, Dye orange No. 1, Eniacid Orange I, Ext D & C Orange 3, Ext D and C Orange No. 3, External D and C Orange Number 3, FD and C Orange 1, FD and C Orange No. 1, Hispacid Orange 1, Japan Orange 1, Japan Orange 402, Japan Orange No. 402, Java Orange I, Naphthalene Orange I, Naphthol Orange, Neklacid Orange 1, Orange 1 sodium salt, Orange 402, Orange I Extra Conc. A Export, Orange IM, Orange No. 402, Tertracid Orange I, Tropaeolin 1, Tropaeolin OOO 1, Yellow 404, alpha-Naphthol orange, sodium 4-[(2E)-2-(4-oxonaphthalen-1(4H)-ylidene)hydrazinyl]benzenesulfonate, sodium 4-[(E)-(4-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate, C.I. Acid Orange 20, C.I. Acid Orange 20, monosodium salt (8CI), C.I. 14600, C.I. Acid Orange 20, monosodium salt, C.I. 14600, C.I. 150, C.I. Acid Orange 20 monosodium salt, C.I. Acid Orange 20, monosodium salt, C.I. Acid Orange 20
• Brand: TCI

Chemical properties

• Molecular weight: 350.32
• Formula: C₁₆H₁₁N₂NaO₄S
• Color/Form: Orange to Brown to Dark red powder to crystal