1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one

Modify Date: 2025-08-21 07:40:42

1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one Structure
1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one structure
Common Name 1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one
CAS Number 14580-22-4 Molecular Weight 208.64400
Density 1.32 g/cm3 Boiling Point 361.6ºC at 760 mmHg
Molecular Formula C10H9ClN2O Melting Point 193-197 °C(lit.)
MSDS Chinese USA Flash Point 172.5ºC

 Names

Name 1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.32 g/cm3
Boiling Point 361.6ºC at 760 mmHg
Melting Point 193-197 °C(lit.)
Molecular Formula C10H9ClN2O
Molecular Weight 208.64400
Flash Point 172.5ºC
Exact Mass 208.04000
PSA 32.67000
LogP 1.95320
Vapour Pressure 2.04E-05mmHg at 25°C
Index of Refraction 1.625
InChIKey CWESERWNUIUBJU-UHFFFAOYSA-N
SMILES CC1=NN(c2ccccc2Cl)C(=O)C1

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xi
Risk Phrases 36
Safety Phrases 26
RIDADR NONH for all modes of transport
WGK Germany 1
HS Code 2933199090

 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%

 Bioassay

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Name: Cell-based high throughput primary assay to identify activators of GPR151
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=G-protein coupled receptor 151; AltName: Full=G-protein coupled receptor PGR7; AltName: Full=GPCR-2037; AltName: Full=Galanin receptor 4; AltName: Full=Galanin-receptor-like protein; Short=GalRL
External Id: GPR151_PHUNTER_AG_LUMI_1536_1X%ACT
Name: AlphaScreen-based biochemical high throughput primary assay to identify activators of...
Source: The Scripps Research Institute Molecular Screening Center
Target: N/A
External Id: FBW7_ACT_ALPHA_1536_1X%ACT PRUN
Name: AlphaScreen-based biochemical high throughput primary assay to identify inhibitors of...
Source: The Scripps Research Institute Molecular Screening Center
External Id: MITF_INH_Alpha_1536_1X%INH PRUN
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 Synonyms

1-(2-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one
1-(2-Chlorophenyl)-3-methyl-5-pyrazolone Hydrate
2-(2-chlorophenyl)-5-methyl-4H-pyrazol-3-one
MFCD00059717
EINECS 238-623-7
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