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1-pentyl-1H-indole-2,3-dione

1-戊基-1H-吲哚-2,3-二酮

Also known as: 1-amylisatin, 1-pentylindole-2,3-dione, 1-pentylindoline-2,3-dione, 1-pentylisatin, 1-pentyl-2,3-dihydro-1H-indole-2,3-dione, 1-pentylbenzo[d]azolidine-2,3-dione, 2,3-dihydro-1-pentyl-1H-indol-2,3-dione, 1H-Indole-2,3-dione, 1-pentyl-

1-pentyl-1H-indole-2,3-dione (CAS 4290-90-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H15NO2 and a molecular weight of 217.26400 g/mol. It is also known as 1-amylisatin, 1-pentylindole-2,3-dione and 1-pentylindoline-2,3-dione. Key properties include a boiling point of 346.3ºC at 760mmHg, a density of 1.145g/cm3 and a flash point of 149.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4290-90-8
Jingsj CID
J-1144614-1
Molecular Formula
C13H15NO2
Chinese Name
1-戊基-1H-吲哚-2,3-二酮
Molecular Weight
217.26400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point346.3ºC at 760mmHg
Density1.145g/cm3
Flash Point149.8ºC

Frequently Asked Questions

What is the CAS number of 1-pentyl-1H-indole-2,3-dione?

The CAS number of 1-pentyl-1H-indole-2,3-dione is 4290-90-8.

What are the molecular formula and molecular weight of 1-pentyl-1H-indole-2,3-dione?

1-pentyl-1H-indole-2,3-dione has molecular formula C13H15NO2 and molecular weight 217.26400 g/mol.

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

Last updated:

How to cite: Jingsj. "1-pentyl-1H-indole-2,3-dione (CAS 4290-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1144614-1 (accessed 2026-10-22).

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