1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3(2H)-one

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Names

[ CAS No. ]:
119022-51-4

[ Name ]:
1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3(2H)-one

[Synonym ]:
3H-Pyrazol-3-one, 1,2-dihydro-1-methyl-5-(trifluoromethyl)-
1-Methyl-5-(trifluoromethyl)-1,2-dihydro-3H-pyrazol-3-one
2-methyl-3-(trifluoromethyl)-1H-pyrazol-5-one
1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3(2H)-one
MFCD00085094

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
224.4ºC at 760 mmHg

[ Melting Point ]:
114-115 °C

[ Molecular Formula ]:
C5H5F3N2O

[ Molecular Weight ]:
166.101

[ Flash Point ]:
89.5ºC

[ Exact Mass ]:
166.035400

[ PSA ]:
38.05000

[ LogP ]:
1.15

[ Vapour Pressure ]:
0.0612mmHg at 25°C

[ Index of Refraction ]:
1.427

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS06

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H301-H315-H319-H335

[ Precautionary Statements ]:
P261-P301 + P310-P305 + P351 + P338

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
2811.0

[ Hazard Class ]:
6.1

[ HS Code ]:
2933199090

Synthetic Route

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Precursor & DownStream

Precursor

  • Ethyl trifluoroacetoacetate
  • monomethylhydrazine
  • Ethyl3-amino-4,4,4-trifluorocrotonate
  • ethyl 2,3-dibromo-4,4,4-trifluorobutenoate
  • Ethyl 3-methoxy-4,4,4-trifluoro-2-butenoate
  • 2-Butynoic acid,4,4,4-trifluoro-, ethyl ester
  • methyl 4,4,4-trifluoro-3-hydroxybut-2-enoate

DownStream

  • 4-chloro-2-methyl-3-(trifluoromethyl)-1H-pyrazol-5-one

Customs

[ HS Code ]: 2933199090

[ Summary ]:
2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%