(n) :
(organic chemistry) Either of two isomeric derivatives of pyridine having a carbonyl group either ortho- or para- to the nitrogen atom; in its tautomeric form, it is the pyridine analogue of phenol.
(n) :
(organic chemistry) Either of two isomeric derivatives of pyridine having a carbonyl group either ortho- or para- to the nitrogen atom; in its tautomeric form, it is the pyridine analogue of phenol.