Definition of "pyrazole" []

• A heterocyclic organic compound containing two nitrogen atoms next to each others in a five-membered ring, called 1,2-diazole in IUPAC nomenclature. (noun)
• A group of compounds containing that structure. (noun)

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• "Geller, and J. E. Wallace, Interaction effects of ethanol and pyrazole in laboratory rodents, British Journal of Pharmacology 43 1971: 67-73."
• "The compounds aren't that bad - they're all pyrazole sulfonamides, a bit bulky and aromatic, but everyone who's done med-chem has seen a lot uglier compounds than these."
• "Applying SPR to the SeeDs method has successfully ascertained why isoxazole is a much more potent growth inhibitor than pyrazole, although they both have the same IC50 against Hsp90 (pyrazole is twofold faster on, but isoxazole is 15-fold slower off)."