8-(2-Aminoethylamino)-1-naphthalenesulfonic acid

8-(2-氨基乙基氨基)-1-萘磺酸

Also known as: N-(Aminoethyl)-8-naphthylamine-1-sulfonic acid, 8-[(2-Aminoethyl)amino]-1-naphthalenesulfonic acid, 8-(2-Aminoethylamino)naphthalene-1-sulfonic acid, N-(2-Aminoethyl)-8-naphthylamine-1-sulphonic acid, 1-Naphthalenesulfonic acid, 8-[(2-aminoethyl)amino]-

8-(2-Aminoethylamino)-1-naphthalenesulfonic acid (CAS 50402-57-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14N2O3S and a molecular weight of 266.31600 g/mol. It is also known as N-(Aminoethyl)-8-naphthylamine-1-sulfonic acid, 8-[(2-Aminoethyl)amino]-1-naphthalenesulfonic acid and 8-(2-Aminoethylamino)naphthalene-1-sulfonic acid. Key properties include a melting point of 345-350ºC dec. and a density of 1.432g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50402-57-8
Jingsj CID
J-1589-3
Molecular Formula
C12H14N2O3S
Chinese Name
8-(2-氨基乙基氨基)-1-萘磺酸
Molecular Weight
266.31600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point345-350ºC dec.
Density1.432g/cm3

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 8-(2-Aminoethylamino)-1-naphthalenesulfonic acid?

The CAS number of 8-(2-Aminoethylamino)-1-naphthalenesulfonic acid is 50402-57-8.

What are the molecular formula and molecular weight of 8-(2-Aminoethylamino)-1-naphthalenesulfonic acid?

8-(2-Aminoethylamino)-1-naphthalenesulfonic acid has molecular formula C12H14N2O3S and molecular weight 266.31600 g/mol.

Is 8-(2-Aminoethylamino)-1-naphthalenesulfonic acid hazardous?

8-(2-Aminoethylamino)-1-naphthalenesulfonic acid has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "8-(2-Aminoethylamino)-1-naphthalenesulfonic acid (CAS 50402-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1589-3 (accessed 2026-10-23).

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