出典:Wiktionary
isonicotinic acid (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/17 19:49 UTC 版)
Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. It is an isomer of nicotinic acid — the carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid.