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6-aminonaphthalene-1,3-disulfonic acid

Also known as: 2-Naphthylamine-5,7-disulfonic acid, 2-Naphthylamine-5,7-disulphonic acid, 6-aminonaphthalene-1,3-disulphonic acid, 2-amino-5,7-naphthalenedisulfonic acid, 2-aminonaphthalene-5,7-disulfonic acid, 6-amino-1,3-naphthalenedisulfonic acid, 6-amino-3-naphthalenedisulfonic acid, Amino J acid, Amino J-acid, 2-Naphthylamin-5,7-disulfonsure, kyselinaamino-i

6-aminonaphthalene-1,3-disulfonic acid (CAS 118-33-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO6S2 and a molecular weight of 303.31200 g/mol. Key property: a density of 1.769g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
118-33-2
Jingsj CID
J-1516706-3
Molecular Formula
C10H9NO6S2
Molecular Weight
303.31200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.769g/cm3
Exact Mass302.98700
PSA151.52000
LogP3.65820
Refractive Index1.733

Customs & Trade Information

HS Code2921499090
Summary2921499090 other aromatic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 6-aminonaphthalene-1,3-disulfonic acid?

The CAS number of 6-aminonaphthalene-1,3-disulfonic acid is 118-33-2.

What are the molecular formula and molecular weight of 6-aminonaphthalene-1,3-disulfonic acid?

6-aminonaphthalene-1,3-disulfonic acid has molecular formula C10H9NO6S2 and molecular weight 303.31200 g/mol.

What are the upstream and downstream products of 6-aminonaphthalene-1,3-disulfonic acid?

For 6-aminonaphthalene-1,3-disulfonic acid, Upstream Products: 2-Amino-1-naphthalenesulfonic acid, 6-Amino-1-naphthalenesulfonic acid, 2-Naphthylamine; Downstream Products: 5,6-Diaminonaphthalene-1,3-disulfonic acid, 2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, 7-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:

How to cite: Jingsj. "6-aminonaphthalene-1,3-disulfonic acid (CAS 118-33-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516706-3 (accessed 2026-11-09).

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