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Sulfonazo III sodium salt

Also known as: Sulfonazo III, titration indicator for SO4, 2,7-Bis(2-sulfophenylazo)chromotropic acid tetrasodium salt, 3,6-Bis(2-sulfophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt, Tetrasodium 4,5-dihydroxy-3,6-bis[2-(2-sulfonatophenyl)diazenyl]naphthalene-2,7-disulfonate, EINECS 217-089-9, MFCD00003942

Sulfonazo III sodium salt (CAS 164581-28-6) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C22H12N4Na4O14S4 and a molecular weight of 776.56800 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
164581-28-6
Jingsj CID
J-32071-8
Molecular Formula
C22H12N4Na4O14S4
Molecular Weight
776.56800 g/mol
Category
Nitrogen Compounds
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass775.88200
PSA352.22000
LogP7.02140

Frequently Asked Questions

What is the CAS number of Sulfonazo III sodium salt?

The CAS number of Sulfonazo III sodium salt is 164581-28-6.

What are the molecular formula and molecular weight of Sulfonazo III sodium salt?

Sulfonazo III sodium salt has molecular formula C22H12N4Na4O14S4 and molecular weight 776.56800 g/mol.

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

Last updated:

How to cite: Jingsj. "Sulfonazo III sodium salt (CAS 164581-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32071-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.