3-Methyl-3-pyrazolin-5-one
- CAS NO.：4344-87-0
- Empirical Formula: C4H6N2O
- Molecular Weight: 98.1
- MDL number: MFCD00010705
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 3-Methyl-3-pyrazolin-5-one?
Chemical properties
Light yellow crystalline powder
The Uses of 3-Methyl-3-pyrazolin-5-one
3-Methyl-3-pyrazolin-5-one was used in the preparation of substituted 4-alkyl(cycloalkyl)-2-amino-3-cyano-4H-pyrans.
General Description
3-Methyl-3-pyrazolin-5-one is an intermediate in the synthesis of heterocyclic compounds. Crystal structure of 3-methyl-3-pyrazolin-5-one was studied.
Properties of 3-Methyl-3-pyrazolin-5-one
| 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) |
| color | Off White |
| CAS DataBase Reference | 4344-87-0(CAS DataBase Reference) |
Safety information for 3-Methyl-3-pyrazolin-5-one
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3-Methyl-3-pyrazolin-5-one
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