tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate

7-[(1,8-二羟基-3,6-二磺基-2-萘)偶氮]-1,3-萘二磺酸四钠盐

Also known as: Acutance green dye, 7-[(1,8-Dihydroxy-3,6-disulfo-2-naphthyl)azo]-1,3-naphthalenedisulfonic acid tetrasodium salt, 1,3-Naphthalenedisulfonic acid, 7-[(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo]-, tetrasodium salt, EINECS 249-745-5

tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate (CAS 29637-28-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H10N2Na4O14S4 and a molecular weight of 722.51748 g/mol. It is also known as Acutance green dye, 7-[(1,8-Dihydroxy-3,6-disulfo-2-naphthyl)azo]-1,3-naphthalenedisulfonic acid tetrasodium salt and 1,3-Naphthalenedisulfonic acid, 7-[(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo]-, tetrasodium salt. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29637-28-3
Jingsj CID
J-51461-7
Molecular Formula
C20H10N2Na4O14S4
Chinese Name
7-[(1,8-二羟基-3,6-二磺基-2-萘)偶氮]-1,3-萘二磺酸四钠盐
Molecular Weight
722.51748 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate?

The CAS number of tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate is 29637-28-3.

What are the molecular formula and molecular weight of tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate?

tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate has molecular formula C20H10N2Na4O14S4 and molecular weight 722.51748 g/mol.

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

Last updated:

How to cite: Jingsj. "tetrasodium 7-[(1,8-dihydroxy-3,6-disulphonato-2-naphthyl)azo]naphthalene-1,3-disulphonate (CAS 29637-28-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-51461-7 (accessed 2026-10-24).

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