1-(4-Chlorophenyl)-3-methyl-5-pyrazolone
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1-(4-Chlorophenyl)-3-methyl-5-pyrazolone
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CAS No:
13024-90-3
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Formula:
C10H9ClN2O
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Chemical Name:
1-(4-Chlorophenyl)-3-methyl-5-pyrazolone
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Synonyms:
3H-Pyrazol-3-one,2-(4-chlorophenyl)-2,4-dihydro-5-methyl-;2-Pyrazolin-5-one,1-(p-chlorophenyl)-3-methyl-;2-(4-Chlorophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one;1-(4-Chlorophenyl)-3-methyl-5-pyrazolone;3-Methyl-1-(4-chlorophenyl)-5-pyrazolone;1-(4-Chlorophenyl)-3-methyl-4,5-dihydropyrazole-5-one;3-Methyl-1-(4-chlorophenyl)-2-pyrazolin-5-one;1-(4-Chlorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one;3-Methyl-1-(4′-chlorophenyl)-2-pyrazolin-5-one;2-(4-Chlorophenyl)-5-methyl-4H-pyrazol-3-one;2-(4-Chloro-phenyl)-5-methyl-2,4-dihydro-pyrazol-3-one
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CAS No:
1-(4-Chlorophenyl)-3-methyl-5-pyrazolone Basic Attributes
208.64
208.64
235-884-9
DTXSID8065325
29331990
Characteristics
32.7
2.31
Light yellow crystalline powder
1.32±0.1 g/cm3(Predicted)
168 °C
382.8±25.0 °C(Predicted)
150.9±28.4 °C
1.598
26 [ug/mL]
4.62E-06mmHg at 25°C
1-(4-Chlorophenyl)-3-methyl-5-pyrazolone Use and Manufacturing
It is obtained by condensation and ring closure of p-chlorophenylhydrazine and acetoacetamide. Add p-chlorophenylhydrazine hydrochloride to the condensation pot, add acetoacetamide at 90-95°C, add acetoacetamide for about 30-40 minutes, and the pH after condensation is 2.5-3. After the reaction is completed, the temperature is cooled to 45°C and the material is discharged. Neutral or acidic, dry to get the finished product.
Neutral dye intermediates. Used to manufacture neutral brilliant yellow 3GL, neutral orange RL, neutral dark brown BRL, etc. Used as intermediates of dyes, pigments, medicines and pesticides; mainly used in organic synthesis of C.I. Acid Orange 87; 88 and other coupling components
3H-Pyrazol-3-one, 2-(4-chlorophenyl)-2,4-dihydro-5-methyl-: INACTIVE
Computed Properties
Molecular Weight:208.64
XLogP3:1.9
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:208.0403406
Monoisotopic Mass:208.0403406
Topological Polar Surface Area:32.7
Heavy Atom Count:14
Complexity:269
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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1-(4-Chlorophenyl)-3-methyl-5-pyrazolone
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