1-Methylindole
Also known as: 1-Methylindole, N-Methylindole, 1-Methyl-1H-indole, 1-Methylindol, 1-methyl indole, 1H-Indole, 1-methyl-, 1H-Indole,1-methyl, EINECS 210-057-5, Indole, 1-methyl- (8CI), Indole,1-methyl, MFCD00005800, N-methylindole, indole, 1-methyl-, methylindole
1-Methylindole (CAS 603-76-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N and a molecular weight of 131.17 g/mol. Key properties include a melting point of 94 - 95ºC, a boiling point of 239.4±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 98.6±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 603-76-9
- Jingsj CID
- J-899533-3
- Molecular Formula
- C9H9N
- Molecular Weight
- 131.17 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 94 - 95ºC |
|---|---|
| Boiling Point | 239.4±9.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 98.6±18.7 °C |
| Exact Mass | 131.073502 |
| PSA | 4.93000 |
| LogP | 2.54 |
| Vapor Pressure | 0.1±0.5 mmHg at 25°C |
| Refractive Index | 1.570 |
| Additional Property | insoluble |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-Methylindole?
The CAS number of 1-Methylindole is 603-76-9.
What are the molecular formula and molecular weight of 1-Methylindole?
1-Methylindole has molecular formula C9H9N and molecular weight 131.17 g/mol.
What are the upstream and downstream products of 1-Methylindole?
For 1-Methylindole, Upstream Products: Indole, Dimethyl Carbonate, iodomethane; Downstream Products: 1-Methyl-1H-indole-3-carboxylic acid, Methyl (1-methylindolyl)-3-glyoxylate, (1-methyl-1H-indol-2-yl)methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methylindole (CAS 603-76-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-899533-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.