3-phenyl-4-thioxo-3,4-dihydrophthalazine-1-carboxylic acid

3-苯基-4-硫代-3,4-二氢酞嗪-1-羧酸

Also known as: 3-phenyl-4-thioxo-3,4-dihydrophthalazine-1-carboxylic acid, 1-Phthalazinecarboxylic acid, 3,4-dihydro-3-phenyl-4-thioxo-, 3-Phenyl-4-thioxo-3,4-dihydro-1-phthalazinecarboxylic acid, 3-phenyl-4-sulfanylidenephthalazine-1-carboxylic acid, QC-3682, RW3995

3-phenyl-4-thioxo-3,4-dihydrophthalazine-1-carboxylic acid (CAS 20988-85-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H10N2O2S and a molecular weight of 282.317 g/mol. It is also known as 1-Phthalazinecarboxylic acid, 3,4-dihydro-3-phenyl-4-thioxo-, 3-Phenyl-4-thioxo-3,4-dihydro-1-phthalazinecarboxylic acid and 3-phenyl-4-sulfanylidenephthalazine-1-carboxylic acid. Key properties include a boiling point of 491.0±28.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 250.8±24.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

20988-85-6

Jingsj CID

J-1134527-3

Molecular Formula

C₁₅H₁₀N₂O₂S

Chinese Name

3-苯基-4-硫代-3,4-二氢酞嗪-1-羧酸

Molecular Weight

282.317 g/mol

Category

Organic Acids

Last updated

8/21/2026