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7-Methylindole

Also known as: 7-Methyl-1H-indole, 7-Me-indole, 7-Methylindol, 1H-Indole, 7-methyl-, 7-Methyl-1H-indole (IUPAC)

7-Methylindole (CAS 933-67-5) 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 80-84 °C(lit.), a boiling point of 266.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 110.5±11.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
933-67-5
Jingsj CID
J-898363-9
Molecular Formula
C9H9N
Molecular Weight
131.17 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point80-84 °C(lit.)
Boiling Point266.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point110.5±11.3 °C
Exact Mass131.073502
PSA15.79000
LogP2.60
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.655
Additional Propertynegligible

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 7-Methylindole?

The CAS number of 7-Methylindole is 933-67-5.

What are the molecular formula and molecular weight of 7-Methylindole?

7-Methylindole has molecular formula C9H9N and molecular weight 131.17 g/mol.

Is 7-Methylindole hazardous?

7-Methylindole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 7-Methylindole?

For 7-Methylindole, Upstream Products: Triethanolamine, o-Toluidine, Triethanolamine hydrochloride; Downstream Products: 7-Methyl-1H-indole-3-carbaldehyde, 7-Methyltryptophol, 7-Methylindoline.

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

Last updated:

How to cite: Jingsj. "7-Methylindole (CAS 933-67-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-898363-9 (accessed 2026-11-09).

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