Sodium 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-(phenylamino)naphthalene-2-sulphonate

酸性棕2

Also known as: C.I. Acid Brown 2, Acid Fast Brown R., Fast Brown R, Weak Acid Brown R, Sodium (3Z)-6-anilino-3-[(2-methoxy-5-nitrophenyl)hydrazono]-4-oxo-3,4-dihydro-2-naphthalenesulfonate, 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-(phenylamino), monosodium salt, 2-Naphthalenesulfonic acid, 3,4-dihydro-3-[2-(2-methoxy-5-nitrophenyl)hydrazinylidene]-4-oxo-6-(phenylamino)-, sodium salt, (3Z)- (1:1), C.I. 17605

Sodium 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-(phenylamino)naphthalene-2-sulphonate (CAS 3626-41-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H17N4NaO7S and a molecular weight of 516.458 g/mol. It is also known as C.I. Acid Brown 2, Acid Fast Brown R. and Fast Brown R. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3626-41-3

Jingsj CID

J-1361496-0

Molecular Formula

C₂₃H₁₇N₄NaO₇S

Chinese Name

酸性棕2

Molecular Weight

516.458 g/mol

Category

Organic Acids

Last updated

8/21/2026