4,4'-Bis(4-amino-1-naphthylazo)-2,2'-stilbenedisulfonic acid

4,4'-双(4-氨基-1-萘基偶氮)-2,2'-芪二磺酸

Also known as: 2,2'-(1,2-Ethenediyl)bis[5-[2-(4-amino-1-naphthalenyl)diazenyl]benzenesulfonic acid], Benzenesulfonic acid, 2,2'-[(E)-1,2-ethenediyl]bis[5-[(E)-2-(4-amino-1-naphthalenyl)diazenyl]-, 4,4'-Bis(4-amino-1-naphthylazo)-2,2'-stilbenedisulfonic Acid, 4,4'-Bis(4-amino-1-naphtylazo)stilbene-2,2'-disulfonic acid, NSC 5067, EINECS 226-754-2

4,4'-Bis(4-amino-1-naphthylazo)-2,2'-stilbenedisulfonic acid (CAS 5463-64-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C34H26N6O6S2 and a molecular weight of 678.737 g/mol. It is also known as 2,2'-(1,2-Ethenediyl)bis[5-[2-(4-amino-1-naphthalenyl)diazenyl]benzenesulfonic acid], Benzenesulfonic acid, 2,2'-[(E)-1,2-ethenediyl]bis[5-[(E)-2-(4-amino-1-naphthalenyl)diazenyl]- and 4,4'-Bis(4-amino-1-naphthylazo)-2,2'-stilbenedisulfonic Acid. Key properties include a melting point of >300ºC and a density of 1.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

5463-64-9

Jingsj CID

J-48868-4

Molecular Formula

C₃₄H₂₆N₆O₆S₂

Chinese Name

4,4'-双(4-氨基-1-萘基偶氮)-2,2'-芪二磺酸

Molecular Weight

678.737 g/mol

Category

Organic Acids

Last updated

8/21/2026