2-Aminonaphthalene-1,5-disulfonic acid

2-氨基-1,5-萘二磺酸

Also known as: Sulpho tobias acid, 2-Naphthylamine-1,5-disulfonic acid, Tobias acid, 5-sulfo-, 2-Amino-1,5-naphthalenedisulfonic acid

2-Aminonaphthalene-1,5-disulfonic acid (CAS 171570-11-9) 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 303.317 g/mol. It is also known as Sulpho tobias acid, 2-Naphthylamine-1,5-disulfonic acid and Tobias acid, 5-sulfo-. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
171570-11-9
Jingsj CID
J-1365225-4
Molecular Formula
C10H9NO6S2
Chinese Name
2-氨基-1,5-萘二磺酸
Molecular Weight
303.317 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 2-Aminonaphthalene-1,5-disulfonic acid?

The CAS number of 2-Aminonaphthalene-1,5-disulfonic acid is 171570-11-9.

What are the molecular formula and molecular weight of 2-Aminonaphthalene-1,5-disulfonic acid?

2-Aminonaphthalene-1,5-disulfonic acid has molecular formula C10H9NO6S2 and molecular weight 303.317 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Aminonaphthalene-1,5-disulfonic acid (CAS 171570-11-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365225-4 (accessed 2026-10-24).

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