4-Methoxyindole-2-carboxylic acid

Also known as: 1H-Indole-2-carboxylic acid, 4-methoxy-, 4-METHOXY-1H-INDOLE-2-CARBOXYLIC ACID, 4-METHOXY-2-INDOLECARBOXYLIC ACID, 4-METHOXYINDOLE-2-CARBOXYLIC ACID, 4-Methoxy-1H-indol-2-carboxylic acid, 4-Methoxy-1H-indole-2-carboxylic acid, 4-Methoxyindole-2carboxylic acid, AKOS JY2082663, IFLAB-BB F2137-0008, MFCD02664458

4-Methoxyindole-2-carboxylic acid (CAS 103260-65-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3 and a molecular weight of 191.183 g/mol. Key properties include a boiling point of 447.6±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 224.5±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 103260-65-7
Jingsj CID: J-1092877-5
Molecular Formula: C₁₀H₉NO₃
Molecular Weight: 191.183 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	447.6±25.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	224.5±23.2 °C
Exact Mass	191.058243
PSA	62.32000
LogP	2.22
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.677
Storage Conditions	2~8°C

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 4-Methoxyindole-2-carboxylic acid?

The CAS number of 4-Methoxyindole-2-carboxylic acid is 103260-65-7.

What are the molecular formula and molecular weight of 4-Methoxyindole-2-carboxylic acid?

4-Methoxyindole-2-carboxylic acid has molecular formula C10H9NO3 and molecular weight 191.183 g/mol.

What are the upstream and downstream products of 4-Methoxyindole-2-carboxylic acid?

For 4-Methoxyindole-2-carboxylic acid, Upstream Products: Methyl 4-methoxy-1H-indole-2-carboxylate, 2-Methyl-3-nitroanisole, 2-Methoxybenzaldehyde; Downstream Products: Methyl 4-methoxy-1-methyl-1H-indole-2-carboxylate, 4-Methoxyindole, 4-Methoxy-1H-indole-3-carbaldehyde.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Methoxyindole-2-carboxylic acid (CAS 103260-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1092877-5 (accessed 2026-11-09).

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