Acid Black 234

酸性黑234

Also known as: 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]sulfonyl]amino]phenyl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt, 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(E)-2-[4-[[[4-[(E)-2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-[(E)-2-phenyldiazenyl]-, sodium salt (1:2), Acid Black BA, Acid Black NB-G, Acid Black NBG, Apollo Leather Black NGRL, C.I. Acid Black 234, Coriamine Black NB-G, Disodium 4-amino-3-[(E)-{4-[({4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}sulfonyl)amino]phenyl}diazenyl]-5-hydroxy-6-[(E)-phenyldiazenyl]-2,7-naphthalenedisulfonate, Dynacid Black 2N

Acid Black 234 (CAS 157577-99-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C34H26N10Na2O9S3 and a molecular weight of 860.806 g/mol. It is also known as 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]sulfonyl]amino]phenyl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt, 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(E)-2-[4-[[[4-[(E)-2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-[(E)-2-phenyldiazenyl]-, sodium salt (1:2) and Acid Black BA. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

157577-99-6

Jingsj CID

J-1068971-2

Molecular Formula

C₃₄H₂₆N₁₀Na₂O₉S₃

Chinese Name

酸性黑234

Molecular Weight

860.806 g/mol

Category

Organic Acids

Last updated

8/21/2026