3-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid

2-萘胺-8-羟基-3,6-二磺酸

Also known as: 2,7-Naphthalenedisulfonic acid, 3-amino-5-hydroxy-, 8-Hydroxy-2-naphthylamine-3,6-disulfonic acid, 2-Amino-8-naphthol-3,6-disulfonic acid, 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 3-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, 7-Amino-1-naphthol-3,6-disulfonic acid, 1-Hydroxy-7-aminonaphthalene-3,6-disulfonic acid, Sulpho gamma acid, 2R acid, NSC 10435, NSC7560

3-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid (CAS 90-40-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO7S2 and a molecular weight of 319.31100 g/mol. It is also known as 2,7-Naphthalenedisulfonic acid, 3-amino-5-hydroxy-, 8-Hydroxy-2-naphthylamine-3,6-disulfonic acid and 2-Amino-8-naphthol-3,6-disulfonic acid. Key property: a density of 1.88 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

90-40-4

Jingsj CID

J-1171119-1

Molecular Formula

C₁₀H₉NO₇S₂

Chinese Name

2-萘胺-8-羟基-3,6-二磺酸

Molecular Weight

319.31100 g/mol

Category

Organic Acids

Last updated

8/21/2026