Pigment Orange 7

颜料橙7

Also known as: sodium 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate, 4,5-Dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid sodium salt, Benzenesulfonic acid,4,5-dichloro-2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1), Benzenesulfonicacid,4,5-dichloro-2-[(2-hydroxy-1-naphthalenyl)azo]-,monosodium salt (9CI), C.I. Pigment Orange 7, monosodium salt (8CI), C.I. 15530, Lithol Red 3G, Lutetia Red 3J, sodium,4,5-dichloro-2-[2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate, sodium 4,5-dichloro-2-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate

Pigment Orange 7 (CAS 5850-81-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H9Cl2N2NaO4S and a molecular weight of 419.21400 g/mol. It is also known as sodium 4,5-dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate, 4,5-Dichloro-2-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid sodium salt and Benzenesulfonic acid,4,5-dichloro-2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

5850-81-7

Jingsj CID

J-1509550-5

Molecular Formula

C₁₆H₉Cl₂N₂NaO₄S

Chinese Name

颜料橙7

Molecular Weight

419.21400 g/mol

Category

Organic Compounds

Last updated

8/21/2026