2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI)

2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI) (CAS 93031-65-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C32H21N7O20S4 and a molecular weight of 951.8 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 93031-65-3
Jingsj CID: J-947912-2
Molecular Formula: C₃₂H₂₁N₇O₂₀S₄
Molecular Weight: 951.8 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI)?

The CAS number of 2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI) is 93031-65-3.

What are the molecular formula and molecular weight of 2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI)?

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Naphthalenesulfonic acid, 4-hydroxy-7-[[5-hydroxy-6-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-3-[(2-hydroxy-4-nitro-5-sulfophenyl)azo]-(9CI) (CAS 93031-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-947912-2 (accessed 2026-10-24).

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