5,5'-(1,2-Ethynediyl)diisophthalic acid

乙炔基联苯-3,3',5,5'-四羧酸

Also known as: Diphenylethyne-3,3',5,5'-tetracarboxylic acid, 1,1'-ethynebenzene-3,3',5,5'-tetracarboxylic acid, 1,3-Benzenedicarboxylic acid, 5,5'-(1,2-ethynediyl)bis-, 5,5'-(Ethyne-1,2-diyl)diisophthalic acid, 5,5′-(ethynylene)diisophthalic acid

5,5'-(1,2-Ethynediyl)diisophthalic acid (CAS 957014-38-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H10O8 and a molecular weight of 354.267 g/mol. It is also known as Diphenylethyne-3,3',5,5'-tetracarboxylic acid, 1,1'-ethynebenzene-3,3',5,5'-tetracarboxylic acid and 1,3-Benzenedicarboxylic acid, 5,5'-(1,2-ethynediyl)bis-. Key properties include a boiling point of 783.3±60.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 441.4±29.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

957014-38-9

Jingsj CID

J-1529125-5

Molecular Formula

C₁₈H₁₀O₈

Chinese Name

乙炔基联苯-3,3',5,5'-四羧酸

Molecular Weight

354.267 g/mol

Category

Organic Acids

Last updated

8/21/2026