2-Pyrazinecarboxylic acid
Also known as: Pyrazine-2-carboxylic acid, Pyrazinoic acid, Pyrazinecarboxylic acid, 2-Pyrazinoic acid, Paradiazinecarboxylic acid, 1,4-Diazine-2-carboxylic acid, 1,4-Diazinecarboxylic acid
2-Pyrazinecarboxylic acid (CAS 98-97-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O2 and a molecular weight of 124.10 g/mol. Key properties include a melting point of 222-225 °C (dec.)(lit.), a boiling point of 313.1±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 143.1±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 98-97-5
- Jingsj CID
- J-4017-5
- Molecular Formula
- C5H4N2O2
- Molecular Weight
- 124.10 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 222-225 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 313.1±22.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 143.1±22.3 °C |
| Exact Mass | 124.027275 |
| PSA | 63.08000 |
| LogP | -1.36 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.579 |
| Additional Property | SOLUBLE IN COLD WATER |
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-Pyrazinecarboxylic acid?
The CAS number of 2-Pyrazinecarboxylic acid is 98-97-5.
What are the molecular formula and molecular weight of 2-Pyrazinecarboxylic acid?
2-Pyrazinecarboxylic acid has molecular formula C5H4N2O2 and molecular weight 124.10 g/mol.
What are the upstream and downstream products of 2-Pyrazinecarboxylic acid?
For 2-Pyrazinecarboxylic acid, Upstream Products: 2,3-pyrazinedicarboxylic acid, 2-Methylpyrazine, 2-Ethylpyrazine; Downstream Products: Pyrazine-2-carbaldehyde, Pyrazine-2-carbothioamide, (2S)-2-[[(2S)-2-cyclohexyl-2-(pyrazine-2-carbonylamino)acetyl]amino]-3,3-dimethylbutanoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Pyrazinecarboxylic acid (CAS 98-97-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4017-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.