1H-Imidazo[4,5-b]pyrazine
1H-咪唑并[4,5-b]吡嗪
Also known as: 1H-Imidazo[4,5-b]pyrazine, Imidazo[4,5-b]pyrazine, 7H-imidazo[4,5-b]pyrazine, 4H-Imidazo[4,5-b]pyrazine, imidazopyrazine
1H-Imidazo[4,5-b]pyrazine (CAS 273-94-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4 and a molecular weight of 120.112 g/mol. It is also known as Imidazo[4,5-b]pyrazine, 7H-imidazo[4,5-b]pyrazine and 4H-Imidazo[4,5-b]pyrazine. Key properties include a boiling point of 213.1ºC at 760mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 74.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 273-94-9
- Jingsj CID
- J-1306940-3
- Molecular Formula
- C5H4N4
- Chinese Name
- 1H-咪唑并[4,5-b]吡嗪
- Molecular Weight
- 120.112 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 213.1ºC at 760mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 74.2ºC |
Frequently Asked Questions
What is the CAS number of 1H-Imidazo[4,5-b]pyrazine?
The CAS number of 1H-Imidazo[4,5-b]pyrazine is 273-94-9.
What are the molecular formula and molecular weight of 1H-Imidazo[4,5-b]pyrazine?
1H-Imidazo[4,5-b]pyrazine has molecular formula C5H4N4 and molecular weight 120.112 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Imidazo[4,5-b]pyrazine (CAS 273-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1306940-3 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.