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3-Methyloxindole

Also known as: 3-Methyl-2-oxindole, 3-Methylindolin-2-one, 1,3-Dihydro-3-methyl-2H-indol-2-one, 2H-Indol-2-one, 1,3-dihydro-3-methyl-, 3-Methyl-1,3-dihydro-2H-indol-2-one, UNII:M6O509COF9

3-Methyloxindole (CAS 1504-06-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9NO and a molecular weight of 147.174 g/mol. Key properties include a melting point of 117-121ºC(lit.), a boiling point of 279.3±29.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 157.9±9.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1504-06-9
Jingsj CID
J-37586-0
Molecular Formula
C9H9NO
Molecular Weight
147.174 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point117-121ºC(lit.)
Boiling Point279.3±29.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point157.9±9.2 °C
Exact Mass147.068420
PSA29.10000
LogP1.64
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.554

Customs & Trade Information

HS Code2933790090
Summary2933790090. 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 3-Methyloxindole?

The CAS number of 3-Methyloxindole is 1504-06-9.

What are the molecular formula and molecular weight of 3-Methyloxindole?

3-Methyloxindole has molecular formula C9H9NO and molecular weight 147.174 g/mol.

What are the upstream and downstream products of 3-Methyloxindole?

For 3-Methyloxindole, Upstream Products: Oxindole, iodomethane, 2-Vinylaniline; Downstream Products: 2'-Aminoacetophenone, 3-Methylindole, 3,3-Dimethylindolin-2-one.

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

Last updated:

How to cite: Jingsj. "3-Methyloxindole (CAS 1504-06-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37586-0 (accessed 2026-11-09).

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