CAS 721-50-6 Prilocaine

CAS 60-80-0 Antipyrine

Product Name: Antipyrine
Alias: Analgesine,Antipyrin,Fenazona,Phenazone
CAS: 60-80-0
EINECS: 200-486-6
MF: C11H12N2O
MW: 188.23
Assay: 99.2%
Grade: Pharmaceutical Grade
Appearance: White Powder

Phenazone is an analgesic, a non-steroidal anti-inflammatory drug and an antipyretic. It was first synthesized by Ludwig Knorr in 1887. Phenazone is synthesized by condensation of phenylhydrazine and ethyl acetoacetate under basic conditions and methylation of the resulting intermediate compound 1-phenyl-3-methylpyrazolone with dimethyl sulfate or methyl iodide. It crystallizes in needles which melt at 156 °C. Potassium permanganate oxidizes it to pyridazine tetracarboxylic acid. Phenazone has an elimination half life of about 12 hours. Indication: Used to relieve pain and fever. Antipyrine is often used in testing the effects of other drugs or diseases on drug-metabolizing enzymes in the liver.



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