6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid

Also known as: 2-Naphthalenesulfonic acid, 6-(dimethylamino)-4-hydroxy-, 6-Dimethylamino-4-hydroxy-2-naphthalenesulfonic acid, 6-(Dimethylamino)-4-hydroxynaphthalene-2-sulfonic acid, 7-(Dimethylamino)-1-naphthol-3-sulfonsaeure, 7-Dimethylamino-naphthol-(1)-sulfonsaeure-(3), NSC 8637, MFCD00003972, EINECS 228-404-4, HMS3078P23

6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid (CAS 6259-50-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H13NO4S and a molecular weight of 267.30100 g/mol. Key properties include a melting point of 251-252ºC (dec.)(lit.) and a density of 1.462g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6259-50-3
Jingsj CID: J-4474-6
Molecular Formula: C₁₂H₁₃NO₄S
Molecular Weight: 267.30100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	251-252ºC (dec.)(lit.)
Density	1.462g/cm3
Exact Mass	267.05700
PSA	86.22000
LogP	2.93890
Refractive Index	1.683

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid?

The CAS number of 6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid is 6259-50-3.

What are the molecular formula and molecular weight of 6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid?

6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid has molecular formula C12H13NO4S and molecular weight 267.30100 g/mol.

What are the upstream and downstream products of 6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid?

For 6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid, Upstream Products: 2-Naphthol-6,8-disulfonic acid, Dimethylamine, 6-Amino-4-hydroxy-2-naphthalenesulfonic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "6-(Dimethylamino)-4-hydroxy-2-naphthalenesulfonic acid (CAS 6259-50-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4474-6 (accessed 2026-11-09).

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