2-(4-Isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)-5-methyl-nicotinic acid.
In the title herbicideh/phytocide, known as imaza-pic, C(14)H(17)N(3)O(3), the pyridine and imidazole rings are almost coplanar [dihedral angle = 3.08 (5)°]. An intra-molecular O-H⋯N hydrogen bond occurs. In the crystal, an N-H⋯O hydrogen bond links mol-ecules into a chain parallel to [010].
Engineering Research Center of Pesticides of Heilongjiang University, Heilongjiang University, Harbin 150050,  People's Republic of China.
Li-Ping
LP
Liu
Xiao-Dan
XD
Wang
Shuang
S
Zhang
Jin-Sheng
JS
Gao