▁and ▁pen ny ro yal . ▁It ▁is ▁class ified ▁as ▁a ▁mon oter p ene . ▁ ▁P ule g one ▁is ▁a ▁clear ▁color less ▁o ily ▁liquid ▁and ▁has ▁a ▁pleasant ▁od or ▁similar ▁to ▁pen ny ro yal , ▁pe pp erm int ▁and ▁cam ph or . ▁ ▁It ▁is ▁used ▁in ▁flav oring ▁agents , ▁in ▁perf um ery , ▁and ▁in ▁a rom ather apy . ▁ ▁To xic ology ▁It ▁was ▁reported ▁that ▁the ▁chemical ▁is ▁to xic ▁to ▁r ats ▁if ▁a ▁large ▁quantity ▁is ▁consum ed . ▁ ▁P ule g one ▁is ▁also ▁an ▁insect ic ide ▁− ▁the ▁most ▁powerful ▁of ▁three ▁insect ic ides ▁naturally ▁occurr ing ▁in ▁many ▁mint ▁species . ▁ ▁As ▁of ▁October ▁ 2 0 1 8 , ▁the ▁F DA ▁with d rew ▁authorization ▁for ▁the ▁use ▁of ▁p ule g one ▁as ▁a ▁synth etic ▁flav oring ▁subst ance ▁for ▁use ▁in ▁food , ▁but ▁that ▁naturally - occ urr ing ▁p ule g one ▁can ▁continue ▁to ▁be ▁used . ▁ ▁Pl ants ▁that ▁contain ▁the ▁chemical ▁ ▁C ree ping ▁Charlie ▁ ▁M ent ha ▁long ifolia ▁ ▁Pen ny ro yal ▁ ▁Pe pp erm int ▁ ▁Sch iz one p eta ▁ten u ifolia ▁Bur ser a ▁grave ol ens ▁ ▁See ▁also ▁▁ ▁M ent hof ur an ▁ ▁M ent hol ▁ ▁References ▁▁ ▁Category : K et ones ▁Category : F lav ors ▁Category : C ool