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

Also known as: 3-Iodo-5-methyl-7-azaindole, 1H-Pyrrolo[2,3-b]pyridine, 3-iodo-5-methyl-

3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1138443-83-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7IN2 and a molecular weight of 258.059 g/mol. Key properties include a boiling point of 369.9±37.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 177.5±26.5 °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.
1138443-83-0
Jingsj CID
J-1355218-6
Molecular Formula
C8H7IN2
Molecular Weight
258.059 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point369.9±37.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point177.5±26.5 °C
Exact Mass257.965393
PSA28.68000
LogP3.28
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.750
Storage Conditions2-8°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

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

The CAS number of 3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine is 1138443-83-0.

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

3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine has molecular formula C8H7IN2 and molecular weight 258.059 g/mol.

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

3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine 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 3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine?

For 3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine, Upstream Products: 1H-Pyrrolo[2,3-b]pyridine, 5-methyl-1-[tris(1-methylethyl)silyl]-.

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

Last updated:

How to cite: Jingsj. "3-Iodo-5-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1138443-83-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1355218-6 (accessed 2026-11-09).

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