2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt

2,7-萘二磺酸,4-氨基-3-[[4-[[[4-[(4-氨基-2-羟基苯基)偶氮]苯基]氨基]羰基]苯基]偶氮]-5-羟基-6-[(4-磺基苯基)偶氮]-, 三钠盐

Also known as: 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino- 2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl ]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt, 4-Amino-3-[4-[4-(4-amino-2-hydroxyphenylazo)phenylcarbamoyl]phenylazo]-5-hydroxy-6-(4-sodiosulfophenylazo)-2,7-naphthalenedisulfonic acid disodium salt, 4-Amino-3-[p-[p-(4-amino-2-hydroxyphenylazo)anilinocarbonyl]phenylazo]-5-hydroxy-6-(p-sodiosulfophenylazo)-2,7-naphthalenedisulfonic acid disodium salt

2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt (CAS 70900-28-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C35H24N9Na3O12S3 and a molecular weight of 927.8 g/mol. It is also known as 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino- 2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl ]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt, 4-Amino-3-[4-[4-(4-amino-2-hydroxyphenylazo)phenylcarbamoyl]phenylazo]-5-hydroxy-6-(4-sodiosulfophenylazo)-2,7-naphthalenedisulfonic acid disodium salt and 4-Amino-3-[p-[p-(4-amino-2-hydroxyphenylazo)anilinocarbonyl]phenylazo]-5-hydroxy-6-(p-sodiosulfophenylazo)-2,7-naphthalenedisulfonic acid disodium salt. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70900-28-6
Jingsj CID
J-636849-6
Molecular Formula
C35H24N9Na3O12S3
Chinese Name
2,7-萘二磺酸,4-氨基-3-[[4-[[[4-[(4-氨基-2-羟基苯基)偶氮]苯基]氨基]羰基]苯基]偶氮]-5-羟基-6-[(4-磺基苯基)偶氮]-, 三钠盐
Molecular Weight
927.8 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt?

The CAS number of 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt is 70900-28-6.

What are the molecular formula and molecular weight of 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt?

2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt has molecular formula C35H24N9Na3O12S3 and molecular weight 927.8 g/mol.

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

Last updated:

How to cite: Jingsj. "2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt (CAS 70900-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-636849-6 (accessed 2026-10-25).

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