Here's what rhymes with phthiocerol.
whole role soul coal goal hole pole roll sole bowl fol mole poll stole toll parole knoll shoal dole foal bole boll thole vole kohl tole dolour skoal scroll stroll systole casserole droll cajole troll unroll prole patrol glycerol enroll extol vacuole petiole condole oriole maypole extoll rissole innersole control buttonhole bedroll camisole cubbyhole arteriole pigeonhole beanpole profiterole quadrupole decontrol