This molecule consists of a pyridine ring with its nitrogen at position 1 and a single substituent at the 4-position:
- Directly attached to the carbon at position 4 of the pyridine is a carbonyl (amide) group (-C(=O)-N-).
- The amide nitrogen is bonded to a second nitrogen, forming a -NH-NH- linkage.
- This second nitrogen is double-bonded to a carbon that also bears a single-bonded hydroxyl (i.e., an N=C(OH) unit).
- From that carbon, there is a -CH2-O-CH2- chain leading to another carbonyl (amide) group.
- The nitrogen of this second amide is attached to a phenyl ring bearing a single methyl substituent para to the amide-attachment point (i.e., p-tolyl).