3-Aminopyrazole
Also known as: 1H-Pyrazol-3-amine, 3-Pyrazolamine, 5-Aminopyrazole, 1H-Pyrazol-3-ylamine, Pyrazol-3-ylamine, 3-AP, MFCD00005236, EINECS 217-338-1
3-Aminopyrazole (CAS 1820-80-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H5N3 and a molecular weight of 83.092 g/mol. Key properties include a melting point of 34-37 °C(lit.), a boiling point of 334.5±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 182.6±7.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1820-80-0
- Jingsj CID
- J-1514756-9
- Molecular Formula
- C3H5N3
- Molecular Weight
- 83.092 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-37 °C(lit.) |
|---|---|
| Boiling Point | 334.5±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 182.6±7.6 °C |
| Exact Mass | 83.048347 |
| PSA | 54.70000 |
| LogP | -0.29 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.648 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2933199090 |
|---|---|
| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. 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-Aminopyrazole?
The CAS number of 3-Aminopyrazole is 1820-80-0.
What are the molecular formula and molecular weight of 3-Aminopyrazole?
3-Aminopyrazole has molecular formula C3H5N3 and molecular weight 83.092 g/mol.
Is 3-Aminopyrazole hazardous?
3-Aminopyrazole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 3-Aminopyrazole?
For 3-Aminopyrazole, Upstream Products: 3-Nitro-1H-pyrazole, 3-Amino-1H-pyrazole-4-carboxylic acid; Downstream Products: Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate, Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione, 3-Iodo-1H-pyrazole.
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-Aminopyrazole (CAS 1820-80-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1514756-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.