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China
Product Name: 1-Methyl-3-(trifluoromethyl)-2-pyrazolin-5-one
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1481-02-3

1481-02-3 structure

1481-02-3 structure

Name: 1-methyl-3-trifluoromethyl-2-pyrazolin-5-one
Chemical Name: 2-methyl-5-(trifluoromethyl)-4H-pyrazol-3-one
CAS Number: 1481-02-3
Molecular Formula: C₅H₅F₃N₂O
Molecular Weight: 166.10100
Create Date: 2018-12-17 18:12:45
Modify Date: 2026-07-22 11:04:11

Name	2-methyl-5-(trifluoromethyl)-4H-pyrazol-3-one
Synonyms	BUTTPK 24 1-METHYL-3-(TRIFLUOROMETHYL)-4,5-DIHYDRO-1H-PYRAZOL-5-ONE 1-Methyl-3-(trifluoroMethyl)-1H-pyrazol-5(4H)-one 2,4-Dihydro-2-methyl-5-(trifluoromethyl)-3H-pyrazol-3-one 1-methyl-3-trifluoromethyl-4H-pyrazol-5-one MFCD00051654 1-METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE 2-METHYL-5-(TRIFLUOROMETHYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE METHYL-3-TRIFLUOROMETHYL-2-PYRAZOLIN-5-ONE 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 1-Methyl-3-trifluormethyl-2-pyrazolin-5-one 3-trifluoromethyl-1-methyl-1H-5-Pyrazolone 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)

Density	1.5 g/cm3
Boiling Point	101.6ºC at 760 mmHg
Melting Point	178 °C
Molecular Formula	C₅H₅F₃N₂O
Molecular Weight	166.10100
Flash Point	15.3ºC
Exact Mass	166.03500
PSA	32.67000
LogP	0.14030
Vapour Pressure	0.029mmHg at 25°C
Index of Refraction	1.53

Hazard Codes	Xi: Irritant;
Risk Phrases	25
Safety Phrases	S22-S24/25
HS Code	2933199090

372-31-6 structure

372-31-6

60-34-4 structure

60-34-4

~%

1481-02-3 structure

1481-02-3

Literature: Australian Journal of Chemistry, , vol. 63, # 5 p. 785 - 791

Precursor 2
372-31-6 60-34-4
DownStream 3
$BUTTPARK 99\18-37 structure$ 128564-57-8 128455-62-9 128455-63-0

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%

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