4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium salt

4-乙酰氨基-4'-异硫氰酸芪-2,2'-二磺酸二钠盐

Also known as: SITS, Disodium 4-acetamido-4'-isothiocyanatostilbene-2,2'-disulfonate, Disodium 5-acetamido-2-[(E)-2-(4-isothiocyanato-2-sulfonatophenyl)ethenyl]benzenesulfonate, 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid, sodium salt, 4-Acetamido-4'-isothiocyanostilbene-2,2'-disulfonic acid disodium salt, 4-Acetylamino-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium salt, 5-(Acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]benzenesulfonic acid disodium salt, Benzenesulfonic acid, 5-(acetylamino)-2-[(E)-2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt (1:2), EINECS 256-919-4, MFCD00007485

4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium salt (CAS 51023-76-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C17H12N2Na2O7S3 and a molecular weight of 498.461 g/mol. It is also known as SITS, Disodium 4-acetamido-4'-isothiocyanatostilbene-2,2'-disulfonate and Disodium 5-acetamido-2-[(E)-2-(4-isothiocyanato-2-sulfonatophenyl)ethenyl]benzenesulfonate. Key properties include a melting point of >300ºC (dec.) and a density of 1.52g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

51023-76-8

Jingsj CID

J-46817-6

Molecular Formula

C₁₇H₁₂N₂Na₂O₇S₃

Chinese Name

4-乙酰氨基-4'-异硫氰酸芪-2,2'-二磺酸二钠盐

Molecular Weight

498.461 g/mol

Category

Organic Acids

Last updated

8/21/2026