1,3,5-Trimethylpyrazole
- CAS NO.：1072-91-9
- Empirical Formula: C6H10N2
- Molecular Weight: 110.16
- MDL number: MFCD00015536
- EINECS: 626-960-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:15
What is 1,3,5-Trimethylpyrazole?
Chemical properties
White Low-Mekting Solid
Definition
ChEBI: 1,3,5-Trimethyl-1H-pyrazole is a member of pyrazoles.
Synthesis Reference(s)
Canadian Journal of Chemistry, 71, p. 410, 1993 DOI: 10.1139/v93-060
Properties of 1,3,5-Trimethylpyrazole
| Melting point: | 38-41 °C (lit.) |
| Boiling point: | 168-170 °C |
| Density | 0.93 |
| refractive index | 1.4589 |
| Flash point: | 93 °F |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| form | powder to lump to clear liquid |
| pka | 3.30±0.10(Predicted) |
| color | White or Colorless to Light yellow |
| λmax | 220nm(MeOH)(lit.) |
| BRN | 110515 |
| CAS DataBase Reference | 1072-91-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3,5-Trimethylpyrazole(1072-91-9) |
Safety information for 1,3,5-Trimethylpyrazole
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H228:Flammable solids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 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 1,3,5-Trimethylpyrazole
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