5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine

5-氯-4-甲基-1H-吡咯并[2,3-b]吡啶

Also known as: 5-chloro-4-methyl-7-azaindole, 1H-pyrrolo[2,3-b]pyridine, 5-chloro-4-methyl-

5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1020056-87-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7ClN2 and a molecular weight of 166.608 g/mol. It is also known as 5-chloro-4-methyl-7-azaindole and 1H-pyrrolo[2,3-b]pyridine, 5-chloro-4-methyl-. Key properties include a boiling point of 304.9±37.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 166.8±12.1 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1020056-87-4
Jingsj CID: J-1114668-7
Molecular Formula: C₈H₇ClN₂
Chinese Name: 5-氯-4-甲基-1H-吡咯并[2,3-b]吡啶
Molecular Weight: 166.608 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	304.9±37.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	166.8±12.1 °C

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine?

The CAS number of 5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine is 1020056-87-4.

What are the molecular formula and molecular weight of 5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine?

5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine has molecular formula C8H7ClN2 and molecular weight 166.608 g/mol.

Is 5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine hazardous?

5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine has GHS signal word Danger.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-chloro-4-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1020056-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1114668-7 (accessed 2026-10-24).

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