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单词 pyrazolone
释义

WordReference Random House Unabridged Dictionary of American English © 2024
py•raz•o•lone  (pi razə lōn′, pī-),USA pronunciation n. [Chem.]
  1. Chemistryany of the group of heterocyclic compounds containing the pyrazoline ring in which one carbon atom is doubly linked to an oxygen atom not in the ring.
  2. Chemistrythe parent compound, C3H4N2O.
  • pyrazole + -one 1885–90

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