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Pyrazolone

Any heterocyclic compound having a five-membered ring with two nitrogen heteroatoms at 1 and 2 positions, one or two double bonds and a carbonyl group

Pyrazolone is 5-membered heterocycle containing two adjacent nitrogen atoms. It can be viewed as a derivative of pyrazole possessing an additional carbonyl (C=O) group. Compounds containing this functional group are useful commercially in analgesics and dyes.

From Wikipedia

Pyrazolone is 5-membered heterocycle containing two adjacent nitrogen atoms. It can be viewed as a derivative of pyrazole possessing an additional carbonyl (C=O) group. Compounds containing this functional group are useful commercially in analgesics and dyes.

Text: Wikipédia, CC BY-SA 4.0. · Image: Innerstream (Public domain) ·

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