ChemicalBook >> CAS DataBase List >>1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE
- CAS No.
- 1481-02-3
- Chemical Name:
- 1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE
- Synonyms
- 2-METHYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE;BUTTPARK 24\09-48;3-trifluoromethyl-1-methyl-1H-5-Pyrazolone;METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE;1-Methyl-3-trifluormethyl-2-pyrazolin-5-one;1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE;2-methyl-5-(trifluoromethyl)-4H-pyrazol-3-one;1-Methyl-3-(trifluoroMethyl)-1H-pyrazol-5(4H)-one;1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one97%;1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one 97%
- CBNumber:
- CB3772867
- Molecular Formula:
- C5H5F3N2O
- Molecular Weight:
- 166.1
- MDL Number:
- MFCD00051654
- MOL File:
- 1481-02-3.mol
- MSDS File:
- SDS
Last updated:2026-05-28 01:55:52
| Product description | Number | Pack Size | Price |
| 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | FD95055 | 1g | $150 |
| 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | FD95055 | 5g | $414.15 |
| 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | FD95055 | 10g | $662.6 |
| 2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 95 | PC3274 | 1g | $52 |
| 2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 95 | PC3274 | 5g | $55 |
| Melting point | 178 °C |
|---|---|
| Boiling point | 101.6±50.0 °C(Predicted) |
| Density | 1.50±0.1 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 0.58±0.50(Predicted) |
| Appearance | White to off-white Solid |
| BRN | 5811070 |
| CAS DataBase Reference | 1481-02-3(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P304+P340-P312-P305+P351+P338-P362-P403+P233-P501 | |||||||||
| Hazard Codes | Xi,T | |||||||||
| Risk Statements | 25 | |||||||||
| Safety Statements | 45 | |||||||||
| Hazard Note | Irritant | |||||||||
| HS Code | 2933119000 | |||||||||
| NFPA 704 |
|
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE price More Price(68)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Biosynth | FD95055 | 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | 1481-02-3 | 1g | $150 | 2026-06-04 | Buy |
| Biosynth | FD95055 | 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | 1481-02-3 | 5g | $414.15 | 2026-06-04 | Buy |
| Biosynth | FD95055 | 2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One | 1481-02-3 | 10g | $662.6 | 2026-06-04 | Buy |
| Apolloscientific | PC3274 | 2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 95 | 1481-02-3 | 1g | $52 | 2026-06-04 | Buy |
| Apolloscientific | PC3274 | 2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 95 | 1481-02-3 | 5g | $55 | 2026-06-04 | Buy |
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE Chemical Properties,Uses,Production
Synthesis
372-31-6
60-34-4
1481-02-3
0.1 mL of methylhydrazine and 10 mL of anhydrous ethanol were added to a 250 mL three-necked flask, stirred and heated to 50°C. Subsequently, 0.1 mol of ethyl trifluoroacetoacetate was slowly added dropwise. After the dropwise addition was completed, the reaction mixture was heated to reflux for 5 hours. Upon completion of the reaction, the mixture was cooled to promote crystallization. The resulting yellow solid was collected by vacuum filtration and dried. The yield of the final product was 85.8%.
References
[1] Patent: CN103951663, 2016, B. Location in patent: Paragraph 0091; 0092; 0093
[2] Australian Journal of Chemistry, 2010, vol. 63, # 5, p. 785 - 791
Synthesis of 1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE from Ethyl 4,4,4-trifluoroacetoacetate and Methylhydrazine
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE Preparation Products And Raw materials
Raw materials
Preparation Products
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE Suppliers
Global( 52)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 17705817739 | info@dycnchem.com | China | 52704 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; +86-85511178 | peter68@ptchemgroup.com | China | 35425 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +86-571-86217390; +8618058761490 | info@gihichemicals.com | China | 49895 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 52923 | 58 | |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43414 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131956 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32343 | 55 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40228 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30123 | 84 |
| Energy Chemical | 021-021-58432009 400-005-6266 | sales8178@energy-chemical.com | China | 44878 | 61 |
1481-02-3(1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE)Related Search:
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4-[(MORPHOLINOAMINO)METHYLENE]-2-PHENYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE
4-[(2-CHLOROANILINO)METHYLENE]-2-PHENYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE
4-[(3-CHLOROANILINO)METHYLENE]-2-PHENYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE
1of4
METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE
1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE
1-METHYL-3-(TRIFLUOROMETHYL)-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
1-Methyl-3-trifluormethyl-2-pyrazolin-5-one
BUTTPARK 24\09-48
1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one 97%
1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one97%
3-trifluoromethyl-1-methyl-1H-5-Pyrazolone
1-Methyl-3-(trifluoroMethyl)-1H-pyrazol-5(4H)-one
2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one97%
2-methyl-5-(trifluoromethyl)-4H-pyrazol-3-one
2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 97%
4,5-Dihydro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-one, 1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one
2-Methyl-5-trifluoromethyl-2,4-dihydro-pyrazol-3-one
3H-Pyrazol-3-one, 2,4-dihydro-2-methyl-5-(trifluoromethyl)-
2,4-Dihydro-2-Methyl-5-(Trifluoromethyl)-3H-Pyrazol-3-One
2-METHYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE
1481-02-3
Pyrazole series
