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

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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

  • 4-Methylphenylhydrazine hydrochloride
  • Ethyl acetoacetate
  • 4-Iodotoluene
  • 3-methyl-2-pyrazolin-5-one
  • 4-Methylphenylhydrazine

DownStream

  • 5-CHLORO-3-METHYL-1-P-TOLYL-1H-PYRAZOLE-4-CARBOXALDEHYDE
  • 4-acetyl-5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-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%

Related Compounds

  • methyl 4-(5-amino-1,2-oxazol-3-yl)-1-methyl-1H-pyrazole-3-carboxylate
  • tert-butyl N-[4-(1-hydroxyprop-2-en-1-yl)-2-methoxyphenyl]carbamate
  • (2S)-1-[5-(trifluoromethyl)pyridin-2-yl]propan-2-amine
  • 3-methyl-2-(trimethyl-1H-pyrazol-4-yl)butanoic acid
  • 3-(1H-pyrrol-3-yl)-1,2-oxazole-5-carboxylic acid
  • (2R)-4-[4-(methoxymethyl)phenyl]butan-2-amine
  • 2-[3,5-dimethyl-1-(propan-2-yl)-1H-pyrazol-4-yl]-1-methylpiperazine
  • {4-[(Morpholin-4-yl)methyl]phenyl}methanesulfonamide
  • {1-[4-(Methoxymethyl)phenyl]-2,2-dimethylcyclopropyl}methanol
  • tert-butyl N-{2-methoxy-4-[(1S)-2,2,2-trifluoro-1-hydroxyethyl]phenyl}carbamate
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