1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one

Also known as: Isatin-bis-cresol, IBK, 3,3-Bis(4-hydroxy-3-methylphenyl)indolin-2-one, 3,3-Bis(3-methyl-4-hydroxyphenyl)indoline-2-on, Isatin Bis-cresol, EINECS 256-318-7, MFCD00484556

1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one (CAS 47465-97-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C22H19NO3 and a molecular weight of 345.39100 g/mol. Key properties include a boiling point of 560.4ºC at 760mmHg, a density of 1.292g/cm3 and a flash point of 292.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 47465-97-4
Jingsj CID: J-18201-2
Molecular Formula: C₂₂H₁₉NO₃
Molecular Weight: 345.39100 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	560.4ºC at 760mmHg
Density	1.292g/cm3
Flash Point	292.7ºC
Exact Mass	345.13600
PSA	69.56000
LogP	4.13910
Refractive Index	1.667

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one?

The CAS number of 1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one is 47465-97-4.

What are the molecular formula and molecular weight of 1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one?

1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one has molecular formula C22H19NO3 and molecular weight 345.39100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,3-Dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one (CAS 47465-97-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18201-2 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.