Phenazone, or phenazon, is an analgesic. It is formed by reducing diortho-dinitrodiphenyl with sodium amalgam and methyl alcohol, or by heating diphenylene-ortho-dihydrazine with hydrochloric acid to 150 C. It crystallizes in needles which melt at 156 C. Potassium permanganate oxidizes it to pyridazine tetracarboxylic acid. Phenazone is an isomer of phenazine.

Synonyms

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Analgesine, Antipyrine, Diméthyloxyquinazine, Oxydiméthylquinazine, Oxydiméthylquinizine, Pyrazoline

See also

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Propyphenazone

Chimic Class

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• Pyrazole
• Pyrazolinone

Pharmacology

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• Analgesics
• Antipyretic
• NSAID

Adverse effects

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• Allergy to pyrazolones
• Nausea
• Agranulocytose

External links

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Non-steroidal anti-inflammatory drugs | Analgesics | Photographic chemicals

Phénazone | Антипирин | Antipyriini