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4-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid [Supplementary Concept]
structure given in first source
Date introduced: October 24, 1994
Pyrazoles
Azoles of two nitrogens at the 1,2 positions, next to each other, in contrast with IMIDAZOLES in which they are at the 1,3 positions.
Heterocyclic Compounds, 1-Ring
Organic compounds that contain a ring structure made up of carbon and one or more additional elements such as nitrogen and oxygen.
Year introduced: 1998
Heterocyclic Compounds
Cyclic compounds that include atoms other than carbon in their ring structure.
Azoles
Five membered rings containing a NITROGEN atom.