Direct Black 32

直接灰AC

Also known as: 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt, C.I. Direct Black 32, C.I. 35440, Benzonerol ABS, Cotoneral ABS, Cotonerol AB, Dialuminous Black AB, Diazol Fast Black JRA, Direct Black 2S, Direct Black AB, Kayarus Black ARX, Sumilight Black AB, LVTRSXQJPWCXPG-KGVGWTEBSA-N, trisodium,(3Z)-6-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-3-[[4-[4-[(2Z)-2-[7-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-1-oxo-3-sulfonatonaphthalen-2-ylidene]hydrazinyl]-2-sulfonatoanilino]phenyl]hydrazinylidene]-4-oxonaphthalene-2-sulfonate

Direct Black 32 (CAS 6428-38-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C48H40N13Na3O13S3 and a molecular weight of 1172.07000 g/mol. It is also known as 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt, C.I. Direct Black 32 and C.I. 35440. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6428-38-2

Jingsj CID

J-1059002-7

Molecular Formula

C₄₈H₄₀N₁₃Na₃O₁₃S₃

Chinese Name

直接灰AC

Molecular Weight

1172.07000 g/mol

Category

Organic Compounds

Last updated

8/21/2026