2-Trifluoromethyl-11-(1-methyl-4-piperidyl)-11H-dibenz(b,f)-1,4-oxathiepin oxalate hydrate 82387-27-7 Piperidine, 1-methyl-4-(2-(trifluoromethyl)-11H-dibenz(b,f)(1,4)oxathiepin-11-yl)-, ethanedioate, hydrate (1:1:1)