5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
Synonym(s):3-Methyl-2-phenylpyrazole-4-carboxylic acid;5-Methyl-1-phenyl-1H-pyrazole-4-carboxylic acid
- CAS NO.：91138-00-0
- Empirical Formula: C11H10N2O2
- Molecular Weight: 202.21
- MDL number: MFCD00067831
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-07-21 11:58:00
What is 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID?
Chemical properties
Off-White Solid
The Uses of 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
5-Methyl-1-phenylpyrazole-4-carboxylic Acid (cas# 91138-00-0) is a compound useful in organic synthesis.
Properties of 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
| Melting point: | 166-170 °C(lit.) |
| Boiling point: | 382.9±22.0 °C(Predicted) |
| Density | 1.24±0.1 g/cm3(Predicted) |
| solubility | Chloroform |
| form | Solid |
| pka | 3.38±0.25(Predicted) |
| color | Off-White |
| λmax | 239nm(EtOH aq)(lit.) |
| BRN | 162776 |
| CAS DataBase Reference | 91138-00-0(CAS DataBase Reference) |
Safety information for 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
| 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. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
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![ETHYL 1-(4-[(2-CHLOROACETYL)AMINO]PHENYL)-5-(TRIFLUOROMETHYL)-1H-PYRAZOLE-4-CARBOXYLATE](https://img.chemicalbook.in/StructureFile/ChemBookStructure2/GIF/CB0735441.gif)
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