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7-Amino-1,3-naphthalenedisulfonic acid

Also known as: Amino G acid, Amino G salt, K acid, 2-Naphthylamine-6,8-disulfonic acid, 1,3-Disulfo-7-naphthylamine, 7-aminonaphthalene-1,3-disulfonic acid, 7-aminonaphthalene-1,3-disulphonic acid, K-ACID, AMINO K ACID

7-Amino-1,3-naphthalenedisulfonic acid (CAS 86-65-7) 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 properties include a melting point of 300°C, a boiling point of 569ºC and a density of 1.769 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
86-65-7
Jingsj CID
J-34723-9
Molecular Formula
C10H9NO6S2
Molecular Weight
303.31200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300°C
Boiling Point569ºC
Density1.769 g/cm3
Exact Mass302.98700
PSA151.52000
LogP3.65820
Additional Propertysoluble

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 7-Amino-1,3-naphthalenedisulfonic acid?

The CAS number of 7-Amino-1,3-naphthalenedisulfonic acid is 86-65-7.

What are the molecular formula and molecular weight of 7-Amino-1,3-naphthalenedisulfonic acid?

7-Amino-1,3-naphthalenedisulfonic acid has molecular formula C10H9NO6S2 and molecular weight 303.31200 g/mol.

What are the upstream and downstream products of 7-Amino-1,3-naphthalenedisulfonic acid?

For 7-Amino-1,3-naphthalenedisulfonic acid, Upstream Products: 2-Amino-1-naphthalenesulfonic acid, 2-Naphthol-6,8-disulfonic acid, 2-Naphthylamine; Downstream Products: 6-Amino-4-hydroxy-2-naphthalenesulfonic acid, 5-Hydroxy-2-methylbenzoic acid, 2-Naphthol-6,8-disulfonic 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. "7-Amino-1,3-naphthalenedisulfonic acid (CAS 86-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34723-9 (accessed 2026-11-06).

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