4-(4,5-dihydro-1H-imidazol-2-yl)pyridine
Also known as: 2-(4-Pyridyl)imidazoline, 4-(4,5-Dihydroimidazol-2-yl)-pyridine, 2-(4-PYRIDYL) CYCLO FORMANIZINE, Pyridine, 4-(4,5-dihydro-1H-imidazol-2-yl)-
4-(4,5-dihydro-1H-imidazol-2-yl)pyridine (CAS 21381-61-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9N3 and a molecular weight of 147.17700 g/mol. Key properties include a boiling point of 277.8ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 121.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21381-61-3
- Jingsj CID
- J-1318661-3
- Molecular Formula
- C8H9N3
- Molecular Weight
- 147.17700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 277.8ºC at 760 mmHg |
|---|---|
| Density | 1.24g/cm3 |
| Flash Point | 121.8ºC |
| Exact Mass | 147.08000 |
| PSA | 37.28000 |
| LogP | 0.19580 |
| Vapor Pressure | 0.00442mmHg at 25°C |
| Refractive Index | 1.656 |
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 4-(4,5-dihydro-1H-imidazol-2-yl)pyridine?
The CAS number of 4-(4,5-dihydro-1H-imidazol-2-yl)pyridine is 21381-61-3.
What are the molecular formula and molecular weight of 4-(4,5-dihydro-1H-imidazol-2-yl)pyridine?
4-(4,5-dihydro-1H-imidazol-2-yl)pyridine has molecular formula C8H9N3 and molecular weight 147.17700 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(4,5-dihydro-1H-imidazol-2-yl)pyridine (CAS 21381-61-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1318661-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.