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Disodium 1,5-naphthalenedisulfonate

Also known as: Sodium 1,5-naphthalenedisulfonate, Sodium 1,5-naphthalenedisulfonate dibasic, 1,5-Naphthalenedisulfonic acid disodium salt, Naphthalene-1,5-disulfonic acid disodium salt, Disodium naphthalene-1,5-disulfonate, 1,5-Naphthalenedisulphonic acid disodium salt, Armstrong acid disodium salt, EINECS 216-732-0

Disodium 1,5-naphthalenedisulfonate (CAS 1655-29-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6Na2O6S2 and a molecular weight of 332.261 g/mol. Key property: a density of 1.704g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1655-29-4
Jingsj CID
J-44821-5
Molecular Formula
C10H6Na2O6S2
Molecular Weight
332.261 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Density1.704g/cm3
Exact Mass331.940125
PSA131.16000
LogP2.80960

Customs & Trade Information

HS Code2904100000
Summary2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Disodium 1,5-naphthalenedisulfonate?

The CAS number of Disodium 1,5-naphthalenedisulfonate is 1655-29-4.

What are the molecular formula and molecular weight of Disodium 1,5-naphthalenedisulfonate?

Disodium 1,5-naphthalenedisulfonate has molecular formula C10H6Na2O6S2 and molecular weight 332.261 g/mol.

What are the upstream and downstream products of Disodium 1,5-naphthalenedisulfonate?

For Disodium 1,5-naphthalenedisulfonate, Downstream Products: 1,5-Dimercaptonaphthalene, 1,5-Naphthalenedisulfonic acid, 1,5-Naphthalenedisulfonyl dichloride.

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

Last updated:

How to cite: Jingsj. "Disodium 1,5-naphthalenedisulfonate (CAS 1655-29-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44821-5 (accessed 2026-11-09).

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