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5-Methyl-1H-indol-4-ol

Also known as: 1H-Indol-4-ol, 5-methyl-, 5-Methyl-1H-indol-4-ol, 4-Hydroxy-5-methylindole, 5-Methyl-4-hydroxyindole, 5-Methylindol-4-ol, 4-Hydroxy-5-methyl-indole

5-Methyl-1H-indol-4-ol (CAS 19499-83-3) 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 boiling point of 339.6±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 159.2±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19499-83-3
Jingsj CID
J-1101945-7
Molecular Formula
C9H9NO
Molecular Weight
147.174 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point339.6±22.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point159.2±22.3 °C
Exact Mass147.068420
PSA36.02000
LogP1.87
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.704

Frequently Asked Questions

What is the CAS number of 5-Methyl-1H-indol-4-ol?

The CAS number of 5-Methyl-1H-indol-4-ol is 19499-83-3.

What are the molecular formula and molecular weight of 5-Methyl-1H-indol-4-ol?

5-Methyl-1H-indol-4-ol has molecular formula C9H9NO and molecular weight 147.174 g/mol.

What are the upstream and downstream products of 5-Methyl-1H-indol-4-ol?

For 5-Methyl-1H-indol-4-ol, Upstream Products: 4-Hydroxyindole, Formaldehyde.

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

Last updated:

How to cite: Jingsj. "5-Methyl-1H-indol-4-ol (CAS 19499-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101945-7 (accessed 2026-11-09).

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