2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine

Also known as: 2-Ethyl-5,7-dimethyl-3H-imidazo[4,5-b]pyridine, 2-Ethyl-5,7-dimethyl-3H-imidazo[4,5-β]pyridine, 5,7-Dimethyl-2-ethylimidazo[4,5-b]pyridine, Adenosine receptor antagonist 4, 1H-Imidazo[4,5-b]pyridine, 2-ethyl-5,7-dimethyl-, 3H-Imidazo[4,5-b]pyridine, 2-ethyl-5,7-dimethyl-

2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine (CAS 133240-06-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H13N3 and a molecular weight of 175.23 g/mol. Key properties include a melting point of 142-146 °C, a boiling point of 370.502ºC at 760 mmHg, a density of 1.14g/cm3 and a flash point of 174.175ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 133240-06-9
Jingsj CID: J-1975964-9
Molecular Formula: C₁₀H₁₃N₃
Molecular Weight: 175.23 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	142-146 °C
Boiling Point	370.502ºC at 760 mmHg
Density	1.14g/cm3
Flash Point	174.175ºC
Exact Mass	175.11100
PSA	41.57000
LogP	2.13710
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.619

Activity & Biological Data

Additional Information	[1]. Lisa C W Chang, et al. 2,6,8-trisubstituted 1-deazapurines as adenosine receptor antagonists. J Med Chem. 2007 Feb 22;50(4):828-34.

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 2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine?

The CAS number of 2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine is 133240-06-9.

What are the molecular formula and molecular weight of 2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine?

2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine has molecular formula C10H13N3 and molecular weight 175.23 g/mol.

What are the upstream and downstream products of 2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine?

For 2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine, Upstream Products: 2,4-Pentanedione, Propionic anhydride, 4,6-Dimethylpyridine-2,3-diamine.

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. "2-Ethyl-5,7-dimethyl-1H-imidazo[4,5-b]pyridine (CAS 133240-06-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1975964-9 (accessed 2026-11-09).

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