3,3-bis(1-butyl-2-methyl-1H-indol-3-yl)phthalide

3,3-双(1-丁基-2-甲基-1H-吲哚-3-基)-1(3H)-异苯并呋喃酮

Also known as: 3,3-Bis(1-butyl-2-methyl-1H-indol-3-yl)isobenzofuran-1(3H)-one, 1,1-Bis(1-butyl-2-methyl-1H-indole-3-yl)isobenzofuran-3(1H)-one, Copikem 20, Copikem Magenta, Yamamoto Red 40, Red 40

3,3-bis(1-butyl-2-methyl-1H-indol-3-yl)phthalide (CAS 50292-91-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C34H36N2O2 and a molecular weight of 504.66200 g/mol. It is also known as 3,3-Bis(1-butyl-2-methyl-1H-indol-3-yl)isobenzofuran-1(3H)-one, 1,1-Bis(1-butyl-2-methyl-1H-indole-3-yl)isobenzofuran-3(1H)-one and Copikem 20. Key properties include a boiling point of 687.1ºC at 760 mmHg, a density of 1.15g/cm3 and a flash point of 369.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

50292-91-6

Jingsj CID

J-1322460-8

Molecular Formula

C₃₄H₃₆N₂O₂

Chinese Name

3,3-双(1-丁基-2-甲基-1H-吲哚-3-基)-1(3H)-异苯并呋喃酮

Molecular Weight

504.66200 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026