Sodium dimethyl 5-sulfoisophthalate

间苯二甲酸二甲酯-5-磺酸钠

Also known as: Sodium 3,5-bis(methoxycarbonyl)benzenesulfonate, Dimethyl 5-sulfoisophthalate sodium salt, Dimethyl-5-sodium sulfoisophthalate, 5-Sulfoisophthalic acid dimethyl ester sodium salt, Dimethyl sodium 5-sulfoisophthalate, 1,3-Benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester, sodium salt

Sodium dimethyl 5-sulfoisophthalate (CAS 3965-55-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NaO7S and a molecular weight of 296.229 g/mol. It is also known as Sodium 3,5-bis(methoxycarbonyl)benzenesulfonate, Dimethyl 5-sulfoisophthalate sodium salt and Dimethyl-5-sodium sulfoisophthalate. Key properties include a melting point of >300 °C(lit.), a density of 1.458g/cm3 and a flash point of 138ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3965-55-7

Jingsj CID

J-1386662-2

Molecular Formula

C₁₀H₉NaO₇S

Chinese Name

间苯二甲酸二甲酯-5-磺酸钠

Molecular Weight

296.229 g/mol

Category

Organic Acids

Last updated

8/21/2026