4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt

4,4'-二苯胺基-1,1'-联萘-5,5'-二磺酸二钾盐

Also known as: Bis-ANS, Bis-ANS dipotassium, bis-ANS (potassium salt), 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid, dipotassium salt, Bis-ANS dipotassium salt

4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt (CAS 65664-81-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C32H22K2N2O6S2 and a molecular weight of 672.85300 g/mol. It is also known as Bis-ANS, Bis-ANS dipotassium and bis-ANS (potassium salt). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 65664-81-5
Jingsj CID: J-1959158-8
Molecular Formula: C₃₂H₂₂K₂N₂O₆S₂
Chinese Name: 4,4'-二苯胺基-1,1'-联萘-5,5'-二磺酸二钾盐
Molecular Weight: 672.85300 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt?

The CAS number of 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt is 65664-81-5.

What are the molecular formula and molecular weight of 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt?

4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt has molecular formula C32H22K2N2O6S2 and molecular weight 672.85300 g/mol.

Is 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt hazardous?

4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt has GHS signal word Warning.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt (CAS 65664-81-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1959158-8 (accessed 2026-10-26).

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