1-Methyl-1H-imidazo[4,5-b]pyridine

Also known as: 1-methylimidazo[4,5-b]pyridine, 1H-Imidazo[4,5-b]pyridine, 1-methyl-

1-Methyl-1H-imidazo[4,5-b]pyridine (CAS 39998-52-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7N3 and a molecular weight of 133.15100 g/mol. Key properties include a boiling point of 272.792ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 118.781ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39998-52-2
Jingsj CID: J-1336043-5
Molecular Formula: C₇H₇N₃
Molecular Weight: 133.15100 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	272.792ºC at 760 mmHg
Density	1.24g/cm3
Flash Point	118.781ºC
Exact Mass	133.06400
PSA	30.71000
LogP	0.96830
Refractive Index	1.659

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 1-Methyl-1H-imidazo[4,5-b]pyridine?

The CAS number of 1-Methyl-1H-imidazo[4,5-b]pyridine is 39998-52-2.

What are the molecular formula and molecular weight of 1-Methyl-1H-imidazo[4,5-b]pyridine?

1-Methyl-1H-imidazo[4,5-b]pyridine has molecular formula C7H7N3 and molecular weight 133.15100 g/mol.

What are the upstream and downstream products of 1-Methyl-1H-imidazo[4,5-b]pyridine?

For 1-Methyl-1H-imidazo[4,5-b]pyridine, Upstream Products: 4-Azabenzimidazole, iodomethane, 2-Chloro-3-methylaminopyridine; Downstream Products: 1H-Imidazo[4,5-b]pyridin-2-amine,1-methyl-.

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. "1-Methyl-1H-imidazo[4,5-b]pyridine (CAS 39998-52-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336043-5 (accessed 2026-11-09).

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