5-Chloropyrazine-2-carboxamide
Also known as: 2-Pyrazinecarboxamide, 5-chloro-, 5-Chloro-2-pyrazinecarboxamide, 2-chloropyrazine-5-carboxamide, 5-chloropyrazinamide, 5-chloro-pyrazine-2-carboxylic acid amide, 5-Chloro-PZA, 5-Cl PZA, 5-chloropyrazine-2-carboxylic acid-amide
5-Chloropyrazine-2-carboxamide (CAS 21279-64-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H4ClN3O and a molecular weight of 157.558 g/mol. Key properties include a boiling point of 331.3±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 154.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21279-64-1
- Jingsj CID
- J-1511279-5
- Molecular Formula
- C5H4ClN3O
- Molecular Weight
- 157.558 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 331.3±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 154.2±27.9 °C |
| Exact Mass | 157.004288 |
| PSA | 68.87000 |
| LogP | 0.73 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.596 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 5-Chloropyrazine-2-carboxamide?
The CAS number of 5-Chloropyrazine-2-carboxamide is 21279-64-1.
What are the molecular formula and molecular weight of 5-Chloropyrazine-2-carboxamide?
5-Chloropyrazine-2-carboxamide has molecular formula C5H4ClN3O and molecular weight 157.558 g/mol.
What are the upstream and downstream products of 5-Chloropyrazine-2-carboxamide?
For 5-Chloropyrazine-2-carboxamide, Upstream Products: Methyl 5-chloropyrazine-2-carboxylate, 5-chloropyrazine-2-carbonyl chloride, 2-Chloropyrazine; Downstream Products: 5-Aminopyrazine-2-carboxamide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chloropyrazine-2-carboxamide (CAS 21279-64-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511279-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.