PRODUCT Properties
| Melting point: | 223-225 °C (lit.) |
| Density | 1.107±0.06 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | 1 M NH4OH: soluble25mg/mL, clear, colorless (in methanol) |
| pka | 9.04±0.70(Predicted) |
| form | solid |
| color | Off White |
| InChI | 1S/C4H6N2O/c1-3-2-4(7)6-5-3/h2H,1H3,(H2,5,6,7) |
| InChIKey | WGVHNCAJPFIFCR-UHFFFAOYSA-N |
| SMILES | CC1=CC(=O)NN1 |
| CAS DataBase Reference | 4344-87-0(CAS DataBase Reference) |
Description and Uses
3-Methyl-3-pyrazolin-5-one was used in the preparation of substituted 4-alkyl(cycloalkyl)-2-amino-3-cyano-4H-pyrans.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| target organs | Respiratory system |
| PPE | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39-36 |
| WGK Germany | 3 |
| HS Code | 2933119000 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
