1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
- CAS NO.：90-31-3
- Empirical Formula: C10H9ClN2O
- Molecular Weight: 208.64
- MDL number: MFCD00020750
- EINECS: 201-984-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 04:14:47
What is 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE?
Chemical properties
Pale yellow crystalline powder
Properties of 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
| Melting point: | 128-131 °C(lit.) |
| Boiling point: | 382.9±25.0 °C(Predicted) |
| Density | 1.32±0.1 g/cm3(Predicted) |
| pka | 2.18±0.50(Predicted) |
| color | Cream |
| CAS DataBase Reference | 90-31-3(CAS DataBase Reference) |
| EPA Substance Registry System | 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl- (90-31-3) |
Safety information for 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-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 |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE manufacturer
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product: 1-(3-chlorophenyl) 3-methyl-5-pyrazolone
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