Any substance, material, compound, mixture or preparation of the following substances or any of their salts or isomers are subject to regulation by the board and to the requirements of the Drug Precursor Act:
A. 1-phenylcyclohexylamine;
B. 1-piperidinocyclohexanecarbonitrile;
C. ephedrine;
D. psuedoephedrine;
E. methylamine;
F. methylformamide;
G. phenylacetic acid; and
H. phenylacetone.