Acid Red 289

酸性红289

Also known as: C.I. Acid Red 289, Xanthylium, 3-[(2,6-dimethylphenyl)amino]-6-[(2,6-dimethylsulfophenyl)amino]-9-(2-sulfophenyl)-, inner salt, monosodium salt, Sodium 4-[(E)-{6-[(2,6-dimethylphenyl)amino]-9-(2-sulfonatophenyl)-3H-xanthen-3-ylidene}ammonio]-3,5-dimethylbenzenesulfonate, Benzenesulfonic acid, 4-[[(3E)-6-[(2,6-dimethylphenyl)amino]-9-(2-sulfophenyl)-3H-xanthen-3-ylidene]amino]-3,5-dimethyl-, sodium salt (1:1)

Acid Red 289 (CAS 12220-28-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C35H29N2NaO7S2 and a molecular weight of 676.734 g/mol. It is also known as C.I. Acid Red 289, Xanthylium, 3-[(2,6-dimethylphenyl)amino]-6-[(2,6-dimethylsulfophenyl)amino]-9-(2-sulfophenyl)-, inner salt, monosodium salt and Sodium 4-[(E)-{6-[(2,6-dimethylphenyl)amino]-9-(2-sulfonatophenyl)-3H-xanthen-3-ylidene}ammonio]-3,5-dimethylbenzenesulfonate. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

12220-28-9

Jingsj CID

J-49794-3

Molecular Formula

C₃₅H₂₉N₂NaO₇S₂

Chinese Name

酸性红289

Molecular Weight

676.734 g/mol

Category

Organic Acids

Last updated

8/21/2026