There is a herbicide that is primarily methylamine, it's round- up but an old formula. If there was a pesticide that had pcp in it I would know, I've spent 100 hours looking for precursors and drugs in household products. The call it a "wet" cigarette. It's formaldehyde. Not only is it embalming fluid it is used extensively in taxidermy. There's no embalming fluid with PCP. Formaldehyde is a useful reagent in the production of many drugs and precursors. It has several names. Formalin, paraformaldehyde is similar,formality, methanal (not methanol)methyline oxide, paraform and 10 other things. It's HCHO and is similar in structure to acetone ( a carbon with w hydrogens and a double bond oxygen on top, an aldehyde)