3-甲基-5-三氟甲基-1H-吡唑
3-Trifluoromethyl-5-(methyl)pyrazole
CAS: 10010-93-2
Molecular Formula: C5H5F3N2
3-甲基-5-三氟甲基-1H-吡唑 - Names and Identifiers
| Name | 3-Trifluoromethyl-5-(methyl)pyrazole |
| Synonyms | 106066 ART-CHEM-BB B014453 TIMTEC-BB SBB004075 3-Trifluoromethyl-5-(methyl)pyrazole 3-TRIFLUOROMETHYL-5-(METHYL)PYRAZOLE 5-Methyl-3-(trifluoromethyl)pyrazole 3-METHYL-5-(TRIFLUOROMETHYL)-1H-PYRAZOLE 3-methyl-5-(trifluoromethyl)-1H-pyrazole 5-methyl-3-(trifluoromethyl)-1H-pyrazole 1H-Pyrazole,3-methyl-5-(trifluoromethyl)- |
| CAS | 10010-93-2 |
| InChI | InChI=1/C5H5F3N2/c1-3-2-4(10-9-3)5(6,7)8/h2H,1H3,(H,9,10) |
| InChIKey | DLCHCAYDSKIFIN-UHFFFAOYSA-N |
3-甲基-5-三氟甲基-1H-吡唑 - Physico-chemical Properties
| Molecular Formula | C5H5F3N2 |
| Molar Mass | 150.1 |
| Density | 1.355 |
| Melting Point | 88-90°C(lit.) |
| Boling Point | 187℃ |
| Flash Point | 67℃ |
| Vapor Presure | 0.874mmHg at 25°C |
| Appearance | Powder |
| Color | White |
| pKa | 11.12±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.429 |
3-甲基-5-三氟甲基-1H-吡唑 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29339900 |
| Hazard Class | IRRITANT |
3-甲基-5-三氟甲基-1H-吡唑 - Reference Information
| Use | 3-methyl-5-trifluoromethylpyrazole is a white to orange powder, crystalline powder and/or bulk, which is a microwave-assisted Steele A common reagent for the preparation of (fluoromethyl) pyrazole by coupling method. |
| Preparation | Using ethyl acetate and ethyl trifluoroacetate as raw materials, through cross-ester condensation reaction, Knoevenagel reaction, cyclition, and finally decarboxylation reaction to produce 3-Methyl-5-trifluoromethylpyrazole [1]. The synthesis roadmap is as follows: Figure 1 3-methyl -5-trifluoromethyl pyrazole synthesis roadmap |
Last Update：2024-04-09 21:54:55
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