pyrazolone

drug

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July 13, 2026

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Pyrazolone is a class of organic compounds characterized by a ring structure containing three carbon atoms and two adjacent nitrogen atoms. The simplest member is pyrazole itself. While not typically found in nature, pyrazolone compounds are synthesized and have significant applications as dyes and medicinal drugs.1

Examples of synthetic pyrazolone compounds include:
* Antipyrine: Used as an analgesic and febrifuge (fever reducer).1
* Tartrazine: Commonly used as a yellow food dye.1
* Phenylbutazone: An anti-inflammatory drug used to treat arthritis.1
* Various dyes used in color photography.1

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analgesic
Anti-inflammatory analgesics
…in the 19th century—salicylic acid, pyrazolone, and phenacetin (or acetophenetidin). Although chemically unrelated, the drugs in these families have the ability to relieve mild to moderate pain through actions that reduce inflammation at its source. Acetylsalicylic acid, or aspirin, which is derived from salicylic acid, is the most widely used…
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…in the 19th century—salicylic acid, pyrazolone, and phenacetin (or acetophenetidin). Although chemically unrelated, the drugs in these families have the ability to relieve mild to moderate pain through actions that reduce inflammation at its source. Acetylsalicylic acid, or aspirin, which is derived from salicylic acid, is the most widely used…
Read More