![Molecular structure of 1H-Imidazo[4,5-b]pyridin-2(3H)-one (CAS 16328-62-4)](/images/chem_structures_svg/224/16328-62-4.svg)
1H-Imidazo[4,5-b]pyridin-2(3H)-one
Also known as: 1,3-Dihydro-2H-imidazo[4,5-b]pyridin-2-one, 1,3-Dihydroimidazo[4,5-b]pyridin-2-one, 2H-Imidazo[4,5-b]pyridin-2-one, 1,3-dihydro-
1H-Imidazo[4,5-b]pyridin-2(3H)-one (CAS 16328-62-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O and a molecular weight of 135.123 g/mol. Key properties include a boiling point of 146.7±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 42.5±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16328-62-4
- Jingsj CID
- J-1335697-3
- Molecular Formula
- C6H5N3O
- Molecular Weight
- 135.123 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 146.7±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 42.5±18.7 °C |
| Exact Mass | 135.043259 |
| PSA | 61.54000 |
| LogP | -0.23 |
| Vapor Pressure | 4.6±0.3 mmHg at 25°C |
| Refractive Index | 1.596 |
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 1H-Imidazo[4,5-b]pyridin-2(3H)-one?
The CAS number of 1H-Imidazo[4,5-b]pyridin-2(3H)-one is 16328-62-4.
What are the molecular formula and molecular weight of 1H-Imidazo[4,5-b]pyridin-2(3H)-one?
1H-Imidazo[4,5-b]pyridin-2(3H)-one has molecular formula C6H5N3O and molecular weight 135.123 g/mol.
What are the upstream and downstream products of 1H-Imidazo[4,5-b]pyridin-2(3H)-one?
For 1H-Imidazo[4,5-b]pyridin-2(3H)-one, Upstream Products: 2,3-Diaminopyridine, 2-Aminonicotinamide, Urea; Downstream Products: 4-Azabenzimidazole, tert-Butyl 2-oxo-1H-imidazo[4,5-b]pyridine-3(2H)-carboxylate, 2-Chloro-1H-imidazo[4,5-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. "1H-Imidazo[4,5-b]pyridin-2(3H)-one (CAS 16328-62-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335697-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.