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7-Methoxyindole

Also known as: 7-Methoxy-1H-indole, 7-METHOXYINDOLE, 7-METHOYINDOLE, 7-OMe-indole, 1H-Indole, 7-methoxy-, NSC 100739, MFCD00047203, EINECS 221-690-1

7-Methoxyindole (CAS 3189-22-8) 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 147-150°C, a boiling point of 297.8±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 109.2±10.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3189-22-8
Jingsj CID
J-19130-0
Molecular Formula
C9H9NO
Molecular Weight
147.174 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point147-150°C
Boiling Point297.8±13.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point109.2±10.1 °C
Exact Mass147.068420
PSA25.02000
LogP2.06
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.637

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • 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-Methoxyindole?

The CAS number of 7-Methoxyindole is 3189-22-8.

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

7-Methoxyindole has molecular formula C9H9NO and molecular weight 147.174 g/mol.

Is 7-Methoxyindole hazardous?

7-Methoxyindole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.

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

For 7-Methoxyindole, Upstream Products: 3-Methyl-2-nitroanisole, Sodium methoxide, 7-iodo-1H-indole; Downstream Products: 1-Benzenesulfonyl-7-methoxy-1H-indole, 2-(7-methoxy-1H-indol-3-yl)acetonitrile, 7-Methoxyindoline.

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-Methoxyindole (CAS 3189-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19130-0 (accessed 2026-11-09).

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