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5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one (Molecular Formula: C11H12N2O)
Product Name: 5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one
CAS Registry Number: 86-92-0
EINECS: 201-708-4  
Synonyms: 2-Pyrazolin-5-one;5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one; 3-Methyl-1-p-tolyl-pyrazolin-5-one; EINECS 201-708-4; 1-(p-Tolyl)-3-methyl-5-pyrazolone; 3-methyl-1-p-tolyl-;86-92-0;
Molecular Structure:
Molecular Formula: C11H12N2O
Molecular Weight: 188.22578
Density:  1.147 g/cm3
Boiling Point:  310.9 °C at 760 mmHg
Melting Point:  129 °C
Flash Point:  141.8 °C
Refractive index:  1.578
Safety Statements:  Slightly toxic by ingestion. When heated to decomposition it emits toxic vapors of NOx.
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