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(3-Formyl-1H-indol-1-yl)acetic acid

N-乙酸-3-吲哚甲醛

Also known as: N-Acetic acid-indole-3-carboxaldehyde, 3-Formylindol-1-yl-acetic acid, (3-Formyl-1-indolyl)acetic acid, 1-(Carboxymethyl)indole-3-carboxaldehyde, 1-Acetic acid-Indole-3-Carboxaldehyde, 1H-Indole-1-acetic acid, 3-formyl-, 2-(3-formylindol-1-yl)acetic acid, 3-Formylindole-1-acetic acid, MFCD00452923

(3-Formyl-1H-indol-1-yl)acetic acid (CAS 138423-98-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO3 and a molecular weight of 203.194 g/mol. It is also known as N-Acetic acid-indole-3-carboxaldehyde, 3-Formylindol-1-yl-acetic acid and (3-Formyl-1-indolyl)acetic acid. Key properties include a melting point of 197-200 °C(lit.), a boiling point of 458.5±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 231.1±23.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
138423-98-0
Jingsj CID
J-48228-4
Molecular Formula
C11H9NO3
Chinese Name
N-乙酸-3-吲哚甲醛
Molecular Weight
203.194 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point197-200 °C(lit.)
Boiling Point458.5±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point231.1±23.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (3-Formyl-1H-indol-1-yl)acetic acid?

The CAS number of (3-Formyl-1H-indol-1-yl)acetic acid is 138423-98-0.

What are the molecular formula and molecular weight of (3-Formyl-1H-indol-1-yl)acetic acid?

(3-Formyl-1H-indol-1-yl)acetic acid has molecular formula C11H9NO3 and molecular weight 203.194 g/mol.

Is (3-Formyl-1H-indol-1-yl)acetic acid hazardous?

(3-Formyl-1H-indol-1-yl)acetic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "(3-Formyl-1H-indol-1-yl)acetic acid (CAS 138423-98-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48228-4 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.