1,3-Dimethyl-5-pyrazolone
- CAS NO.:2749-59-9
- Empirical Formula: C5H8N2O
- Molecular Weight: 112.13
- MDL number: MFCD00067008
- EINECS: 220-389-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:28
What is 1,3-Dimethyl-5-pyrazolone?
Chemical properties
Light Beige Solid
The Uses of 1,3-Dimethyl-5-pyrazolone
1,3-Dimethyl-5-pyrazolone (cas# 2749-59-9) is a compound useful in organic synthesis.
Properties of 1,3-Dimethyl-5-pyrazolone
| Melting point: | 117°C |
| Boiling point: | 210.05°C (rough estimate) |
| Density | 1.1524 (rough estimate) |
| refractive index | 1.4730 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), DMSO (Slightly), Ethyl Acetate (Slightly, Sonicated), Met |
| form | Solid |
| pka | 2.93±0.50(Predicted) |
| color | Off-White to Light Beige |
| Water Solubility | almost transparency |
| CAS DataBase Reference | 2749-59-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-(2749-59-9) |
| EPA Substance Registry System | 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl- (2749-59-9) |
Safety information for 1,3-Dimethyl-5-pyrazolone
| 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. 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 1,3-Dimethyl-5-pyrazolone
| InChIKey | JXPVQFCUIAKFLT-UHFFFAOYSA-N |
1,3-Dimethyl-5-pyrazolone manufacturer
SAKEM LLP
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Phone:+91-9676889998
Whatsapp: +91-9676889998
product: 1,3-Dimethyl-5-pyrazolone 2749-59-9 98%
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