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5-Methoxy-3-methyl-1H-indole-2-carboxylic acid

Also known as: 1H-Indole-2-carboxylic acid, 5-methoxy-3-methyl-, 5-METHOXY-3-METHYL-1H-INDOLE-2-CARBOXYLIC ACID, 5-Methoxy-3-Methylindole-2-carboxylic Acid, 5-Methoxy-3-methyl-1H-indol-2-carboxylic acid, 5-Methoxy-3-methyl-indol-2-carbonsaeure, 5-methoxy-3-methylindole-2-carboxylic acid, 5-methoxy-3-methyl-1H-indole-2-carboxylic acid(SALTDATA: FREE)

5-Methoxy-3-methyl-1H-indole-2-carboxylic acid (CAS 16381-50-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H11NO3 and a molecular weight of 205.210 g/mol. Key properties include a boiling point of 441.3±40.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 220.7±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16381-50-3
Jingsj CID
J-1481506-6
Molecular Formula
C11H11NO3
Molecular Weight
205.210 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point441.3±40.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point220.7±27.3 °C
Exact Mass205.073898
PSA62.32000
LogP2.68
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.658

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 5-Methoxy-3-methyl-1H-indole-2-carboxylic acid?

The CAS number of 5-Methoxy-3-methyl-1H-indole-2-carboxylic acid is 16381-50-3.

What are the molecular formula and molecular weight of 5-Methoxy-3-methyl-1H-indole-2-carboxylic acid?

5-Methoxy-3-methyl-1H-indole-2-carboxylic acid has molecular formula C11H11NO3 and molecular weight 205.210 g/mol.

What are the upstream and downstream products of 5-Methoxy-3-methyl-1H-indole-2-carboxylic acid?

For 5-Methoxy-3-methyl-1H-indole-2-carboxylic acid, Upstream Products: ethyl 5-methoxy-3-methyl-1H-indole-2-carboxylate, p-Anisidine, Ethyl 5-methoxy-1H-indole-2-carboxylate; Downstream Products: 5-methoxy-3-methyl-1H-indole-2-carbaldehyde, 5-methoxy-3-methyl-1H-indole.

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-Methoxy-3-methyl-1H-indole-2-carboxylic acid (CAS 16381-50-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1481506-6 (accessed 2026-11-09).

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