5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid

颜料黄139

Also known as: Pigment Yellow 139, C.I. 56298, 5,5'-(1H-isoindole-1,3(2H)-diylidene)bis[2,4,6(1H,3H,5H)-pyrimidinetrione], 1,3-Bis(2,4,6-trioxohexahydropyrimidin-5-ylidene)isoindoline, 1,3-Di(2,4,6-trioxohexahydro-5-pyrimidinylidene)isoindole, 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-(1H-isoindole-1,3(2H)-diylidene)bis-, 5-[3-(2,4,6-Trioxo-1,3-diazinan-5-ylidene)isoindol-1-ylidene]-1,3-diazinane-2,4,6-trione, Yellow L1820, Yellow 1820

5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid (CAS 36888-99-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H9N5O6 and a molecular weight of 367.27300 g/mol. It is also known as Pigment Yellow 139, C.I. 56298 and 5,5'-(1H-isoindole-1,3(2H)-diylidene)bis[2,4,6(1H,3H,5H)-pyrimidinetrione]. Key property: a density of 1.696 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

36888-99-0

Jingsj CID

J-5696-6

Molecular Formula

C₁₆H₉N₅O₆

Chinese Name

颜料黄139

Molecular Weight

367.27300 g/mol

Category

Organic Compounds

Last updated

8/21/2026