§ 220.60 Criminal possession of precursors of controlled substances. A  person  is  guilty  of  criminal  possession  of precursors of con-  trolled substances when, with intent to manufacture  a  controlled  sub-  stance unlawfully, he possesses at the same time: (a) carbamide  (urea)  and  propanedioc  and  malonic  acid  or  its  derivatives; or (b) ergot  or  an  ergot  derivative  and  diethylamine  or  dimethyl-  formamide or diethylamide; or (c)  phenylacetone (1-phenyl-2 propanone) and hydroxylamine or ammonia  or formamide or benzaldehyde or nitroethane or methylamine. (d) pentazocine and methyliodide; or (e) phenylacetonitrile and  dichlorodiethyl  methylamine  or  dichlor-  odiethyl benzylamine; or (f) diephenylacetonitrile and dimethylaminoisopropyl chloride; or (g)  piperidine  and  cyclohexanone  and  bromobenzene  and lithium or  magnesium; or (h) 2, 5-dimethoxy benzaldehyde and nitroethane and a reducing agent. Criminal prossession of precursors of controlled substances is a class  E felony.