Acid Black 242

酸性黑242

Also known as: 4-Amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]amino]sulfonyl]phenyl]azo]-5-hydroxy-6-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid disodium salt, 4-Amino-6-[4-[4-(2,4-diaminophenylazo)-phenylsulphamoyl]-phenylazo]-5-hydroxy-3-(4-nitrophenylazo)-naphthalene-2,7-disulphonic acid sodium salt, (3E)-5-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]sulfamoyl]phenyl]hydrazinylidene]-6-[(4-nitrophenyl)diazenyl]-4-oxonaphthalene-2,7-disulfonate

Acid Black 242 (CAS 152521-11-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C34H25N11Na2O11S3 and a molecular weight of 905.80400 g/mol. It is also known as 4-Amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]amino]sulfonyl]phenyl]azo]-5-hydroxy-6-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid disodium salt, 4-Amino-6-[4-[4-(2,4-diaminophenylazo)-phenylsulphamoyl]-phenylazo]-5-hydroxy-3-(4-nitrophenylazo)-naphthalene-2,7-disulphonic acid sodium salt and (3E)-5-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]sulfamoyl]phenyl]hydrazinylidene]-6-[(4-nitrophenyl)diazenyl]-4-oxonaphthalene-2,7-disulfonate. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
152521-11-4
Jingsj CID
J-1492204-2
Molecular Formula
C34H25N11Na2O11S3
Chinese Name
酸性黑242
Molecular Weight
905.80400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Acid Black 242?

The CAS number of Acid Black 242 is 152521-11-4.

What are the molecular formula and molecular weight of Acid Black 242?

Acid Black 242 has molecular formula C34H25N11Na2O11S3 and molecular weight 905.80400 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Acid Black 242 (CAS 152521-11-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492204-2 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.