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3-Bromo-7-azaindole

Also known as: 3-Bromo-1H-pyrrolo[2,3-b]pyridine, 1H-Pyrrolo[2,3-b]pyridine, 3-bromo-, 3-BROMO-1H-PYRROLO[2,3-B]PYRIDINE

3-Bromo-7-azaindole (CAS 74420-15-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5BrN2 and a molecular weight of 197.03 g/mol. Key properties include a melting point of 185-189ºC, a boiling point of 336.4ºC at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 157.3ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74420-15-8
Jingsj CID
J-1962141-1
Molecular Formula
C7H5BrN2
Molecular Weight
197.03 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point185-189ºC
Boiling Point336.4ºC at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point157.3ºC
Exact Mass195.963608
PSA28.68000
LogP2.80
Refractive Index1.728

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

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 3-Bromo-7-azaindole?

The CAS number of 3-Bromo-7-azaindole is 74420-15-8.

What are the molecular formula and molecular weight of 3-Bromo-7-azaindole?

3-Bromo-7-azaindole has molecular formula C7H5BrN2 and molecular weight 197.03 g/mol.

Is 3-Bromo-7-azaindole hazardous?

3-Bromo-7-azaindole has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.

What are the upstream and downstream products of 3-Bromo-7-azaindole?

For 3-Bromo-7-azaindole, Upstream Products: 7-Azaindole; Downstream Products: 3-Bromo-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine, 3-bromo-1-(4-methylbenzenesulfonyl)-1H-pyrrolo[2,3-b]pyridine, 1-benzyl-3-bromo-1H-pyrrolo[2,3-b]pyridine.

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-Bromo-7-azaindole (CAS 74420-15-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1962141-1 (accessed 2026-11-09).

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