3-Aminopyrazin-2(1H)-one
Also known as: 2(1H)-Pyrazinone, 3-amino-, 2-Amino-3-hydroxypyrazine, 3-Aminopyrazin-2(1H)-one, 3-Aminopyrazin-2(3H)-one, 3-Amino-1H-pyrazin-2-one, 3-Amino-2(1H)-pyrazinone, 3-Amino-2-pyrazinol, 3-Aminopyrazin-2-ol, NSC 263764
3-Aminopyrazin-2(1H)-one (CAS 43029-19-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O and a molecular weight of 111.102 g/mol. Key properties include a melting point of 300-301ºC, a boiling point of 538.9±50.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 279.7±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 43029-19-2
- Jingsj CID
- J-1435922-9
- Molecular Formula
- C4H5N3O
- Molecular Weight
- 111.102 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 300-301ºC |
|---|---|
| Boiling Point | 538.9±50.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 279.7±30.1 °C |
| Exact Mass | 111.043259 |
| PSA | 72.03000 |
| LogP | -0.33 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.668 |
| Storage Conditions | 2-8°C |
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 3-Aminopyrazin-2(1H)-one?
The CAS number of 3-Aminopyrazin-2(1H)-one is 43029-19-2.
What are the molecular formula and molecular weight of 3-Aminopyrazin-2(1H)-one?
3-Aminopyrazin-2(1H)-one has molecular formula C4H5N3O and molecular weight 111.102 g/mol.
What are the upstream and downstream products of 3-Aminopyrazin-2(1H)-one?
For 3-Aminopyrazin-2(1H)-one, Upstream Products: 3-Hydroxypyrazine-2-carboxamide; Downstream Products: 2-Amino-3-chloropyrazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Aminopyrazin-2(1H)-one (CAS 43029-19-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1435922-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.