2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

Names

[ CAS No. ]:
86-92-0

[ Name ]:
2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

[Synonym ]:
EINECS 201-708-4
5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one
MFCD00035708
5-Methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one
2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-methylphenyl)-

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
365.1±21.0 °C at 760 mmHg

[ Melting Point ]:
129 °C

[ Molecular Formula ]:
C₁₁H₁₂N₂O

[ Molecular Weight ]:
188.226

[ Flash Point ]:
174.6±22.1 °C

[ Exact Mass ]:
188.094955

[ PSA ]:
32.67000

[ LogP ]:
0.90

[ Vapour Pressure ]:
0.0±0.8 mmHg at 25°C

[ Index of Refraction ]:
1.595

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ9680000

CHEMICAL NAME :: 2-Pyrazolin-5-one, 3-methyl-1-p-tolyl-

CAS REGISTRY NUMBER :: 86-92-0

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C11-H12-N2-O

MOLECULAR WEIGHT :: 188.25

WISWESSER LINE NOTATION :: T5NNV DHJ BR D1& E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7450 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Skin and Appendages - hair

REFERENCE :: LONZA# Personal Communication from LONZA Ltd., CH-4002, Basel, Switzerland Volume(issue)/page/year: 26APR1982

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
22

[ RTECS ]:
UQ9680000

[ HS Code ]:
2933199090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

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%