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1-Methyl-1H-indole-2-carboxylic acid

Also known as: 1-Methylindole-2-carboxylic acid, 1-Methyl-2-indolecarboxylic acid, N-Methyl-2-indolecarboxylic acid, 1H-Indole-2-carboxylic acid, 1-methyl-, MFCD00005801, AKOS JY2082906, RARECHEM AL BE 0864

1-Methyl-1H-indole-2-carboxylic acid (CAS 16136-58-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2 and a molecular weight of 175.184 g/mol. Key properties include a melting point of 212-213 °C (dec.)(lit.), a boiling point of 389.0±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 189.0±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16136-58-6
Jingsj CID
J-19198-0
Molecular Formula
C10H9NO2
Molecular Weight
175.184 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point212-213 °C (dec.)(lit.)
Boiling Point389.0±15.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point189.0±20.4 °C
Exact Mass175.063324
PSA42.23000
LogP2.00
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.612

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • 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 1-Methyl-1H-indole-2-carboxylic acid?

The CAS number of 1-Methyl-1H-indole-2-carboxylic acid is 16136-58-6.

What are the molecular formula and molecular weight of 1-Methyl-1H-indole-2-carboxylic acid?

1-Methyl-1H-indole-2-carboxylic acid has molecular formula C10H9NO2 and molecular weight 175.184 g/mol.

Is 1-Methyl-1H-indole-2-carboxylic acid hazardous?

1-Methyl-1H-indole-2-carboxylic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 1-Methyl-1H-indole-2-carboxylic acid?

For 1-Methyl-1H-indole-2-carboxylic acid, Upstream Products: Methyl 1-methyl-1H-indole-2-carboxylate, 2-Chloro-N-methylaniline, Pyruvic acid; Downstream Products: (1-methyl-1H-indol-2-yl)methanol, 1-Methylindole, 1-Methyl-2-phenylindole.

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-Methyl-1H-indole-2-carboxylic acid (CAS 16136-58-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19198-0 (accessed 2026-11-09).

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