
1820-80-0
| Name | 3-Aminopyrazole |
| CAS | 1820-80-0 |
| EINECS(EC#) | 217-338-1 |
| Molecular Formula | C3H5N3 |
| MDL Number | MFCD00005236 |
| Molecular Weight | 83.09 |
| MOL File | 1820-80-0.mol |
Chemical Properties
| Appearance | Low-Melting Yellow Solid |
| Melting point | 34-37 °C (lit.) |
| Boiling point | 218 °C/122 mmHg (lit.) |
| density | 1.0248 (rough estimate) |
| refractive index | 1.5060 (estimate) |
| Fp | >230 °F |
| storage temp. | 2-8°C |
| solubility | soluble in Methanol |
| form | Oily Liquid or Crystalline Low Melting Solid |
| pka | 15.28±0.10(Predicted) |
| color | White to light yellow |
| Sensitive | Air & Light Sensitive |
| Usage | Used in the preparation of heterocyclic compounds of pharamaceutical interest |
| Detection Methods | GC.NMR |
| BRN | 1618 |
| InChI | 1S/C3H5N3/c4-3-1-2-5-6-3/h1-2H,(H3,4,5,6) |
| InChIKey | JVVRJMXHNUAPHW-UHFFFAOYSA-N |
| SMILES | Nc1cc[nH]n1 |
| CAS DataBase Reference | 1820-80-0(CAS DataBase Reference) |
Safety Data
| Symbol(GHS) | ![]() ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302-H314 |
| Precautionary statements | P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | C,Xi |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 3263 8/PG 2 |
| WGK Germany | 3 |
| F | 8-10-23 |
| Hazard Note | Corrosive |
| REACH Registrations | Active |
| HazardClass | 8 |
| HazardClass | IRRITANT |
| PackingGroup | Ⅱ |
| HS Code | 29331900 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Skin Corr. 1B |

