4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid

4,5-二羟基-3-(1-萘基偶氮)-2,7-萘二磺酸

Also known as: (3E)-5-hydroxy-3-(naphthalen-1-ylhydrazinylidene)-4-oxonaphthalene-2,7-disulfonic acid, 1'.8'-Dihydroxy-[1.2']azonaphthalin-disulfonsaeure-(3'.6'), 1-Naphthylazo-chromotropsaeure, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, 4,5-Dihydroxy-3-[1]naphthylazo-naphthalene-2,7-disulfonic acid, 4,5-dihydroxy-3-[1]naphthylazo-naphthalene-2,7-disulfonic acid, Naphthalin-(1 azo 2)-(1.8-dioxy-naphthalin-disulfonsaeure-(3.6))

4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid (CAS 62106-17-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H14N2O8S2 and a molecular weight of 474.46400 g/mol. It is also known as (3E)-5-hydroxy-3-(naphthalen-1-ylhydrazinylidene)-4-oxonaphthalene-2,7-disulfonic acid, 1'.8'-Dihydroxy-[1.2']azonaphthalin-disulfonsaeure-(3'.6') and 1-Naphthylazo-chromotropsaeure. Key property: a density of 1.69g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

62106-17-6

Jingsj CID

J-1026719-6

Molecular Formula

C₂₀H₁₄N₂O₈S₂

Chinese Name

4,5-二羟基-3-(1-萘基偶氮)-2,7-萘二磺酸

Molecular Weight

474.46400 g/mol

Category

Organic Acids

Last updated

8/21/2026