1-aminonaphthalene-2-sulfonic acid

1-氨基萘-2-磺酸

Also known as: 1-Amino-2-naphthalenesulfonic acid, 1-Naphthylamine-2-sulfonic acid, α-Naphthylamine-2-sulfonic acid, 1-Aminonaphthalene-2-sulphonic acid, 1-Amino-naphthalin-2-sulfonsaeure, o-Naphthionic acid, EINECS 201-320-5

1-aminonaphthalene-2-sulfonic acid (CAS 81-06-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3S and a molecular weight of 223.24800 g/mol. It is also known as 1-Amino-2-naphthalenesulfonic acid, 1-Naphthylamine-2-sulfonic acid and α-Naphthylamine-2-sulfonic acid. Key property: a density of 1.502g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-06-1
Jingsj CID
J-943505-6
Molecular Formula
C10H9NO3S
Chinese Name
1-氨基萘-2-磺酸
Molecular Weight
223.24800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.502g/cm3

Frequently Asked Questions

What is the CAS number of 1-aminonaphthalene-2-sulfonic acid?

The CAS number of 1-aminonaphthalene-2-sulfonic acid is 81-06-1.

What are the molecular formula and molecular weight of 1-aminonaphthalene-2-sulfonic acid?

1-aminonaphthalene-2-sulfonic acid has molecular formula C10H9NO3S and molecular weight 223.24800 g/mol.

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

Last updated:

How to cite: Jingsj. "1-aminonaphthalene-2-sulfonic acid (CAS 81-06-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-943505-6 (accessed 2026-10-22).

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