(3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime

(3Z)-5-甲基-1H-吲哚-2,3-二酮 3-肟

Also known as: 3-(Hydroxyimino)-5-methylindolin-2-one, 5-Methyl-1H-indole-2,3-dione 3-oxime, 3-(Hydroxyimino)-5-methyl-2,3-dihydro-1H-indol-2-one, (Z)-3-(Hydroxyimino)-5-methylindolin-2-one, 5-Methylisatin-3-oxime, 5-Methylisatinmonoxime, 3-(Hydroxyamino)-5-methylindol-2-one, 5-Methyl-indoline-2,3-dione-3-oxime

(3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime (CAS 13208-98-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O2 and a molecular weight of 176.17200 g/mol. It is also known as 3-(Hydroxyimino)-5-methylindolin-2-one, 5-Methyl-1H-indole-2,3-dione 3-oxime and 3-(Hydroxyimino)-5-methyl-2,3-dihydro-1H-indol-2-one. Key properties include a boiling point of 390.8ºC at 760 mmHg, a density of 1.42g/cm3 and a flash point of 190.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13208-98-5
Jingsj CID
J-1045281-1
Molecular Formula
C9H8N2O2
Chinese Name
(3Z)-5-甲基-1H-吲哚-2,3-二酮 3-肟
Molecular Weight
176.17200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point390.8ºC at 760 mmHg
Density1.42g/cm3
Flash Point190.2ºC

Frequently Asked Questions

What is the CAS number of (3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime?

The CAS number of (3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime is 13208-98-5.

What are the molecular formula and molecular weight of (3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime?

(3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime has molecular formula C9H8N2O2 and molecular weight 176.17200 g/mol.

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

Last updated:

How to cite: Jingsj. "(3Z)-5-Methyl-1H-indole-2,3-dione 3-oxime (CAS 13208-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1045281-1 (accessed 2026-10-22).

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