3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one

3-(3,5-二叔丁基-4-羟基苯亚甲基)二氢吲哚-2-酮

Also known as: 3-(3,5-DI-TERT-BUTYL-4-HYDROXYBENZYLIDENYL)INDOLIN-2-ONE, 3-(3,5-Di-tert-butyl-4-hydroxybenzylidenyl)indolin-2-one, 3-[3,5-Di(tert-butyl)-4-(hydroxy)benzylidene]-1,3-dihydroindol-2-one, 2H-Indol-2-one, 3-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylene]-1,3-dihydro-, 3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1H-indol-2-one

3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one (CAS 40526-64-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C23H27NO2 and a molecular weight of 349.46600 g/mol. It is also known as 3-(3,5-DI-TERT-BUTYL-4-HYDROXYBENZYLIDENYL)INDOLIN-2-ONE, 3-(3,5-Di-tert-butyl-4-hydroxybenzylidenyl)indolin-2-one and 3-[3,5-Di(tert-butyl)-4-(hydroxy)benzylidene]-1,3-dihydroindol-2-one. Key properties include a boiling point of 493.881ºC at 760 mmHg, a density of 1.125g/cm3 and a flash point of 252.49ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40526-64-5
Jingsj CID
J-20580-5
Molecular Formula
C23H27NO2
Chinese Name
3-(3,5-二叔丁基-4-羟基苯亚甲基)二氢吲哚-2-酮
Molecular Weight
349.46600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point493.881ºC at 760 mmHg
Density1.125g/cm3
Flash Point252.49ºC

Frequently Asked Questions

What is the CAS number of 3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one?

The CAS number of 3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one is 40526-64-5.

What are the molecular formula and molecular weight of 3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one?

3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one has molecular formula C23H27NO2 and molecular weight 349.46600 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]-1,3-dihydro-2H-indol-2-one (CAS 40526-64-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20580-5 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.