Sec. 6. As used in this chapter, "precursor" means a substance, other than a legend drug, that:
(1) is an immediate chemical intermediate that can be processed or synthesized into a legend drug; and
(2) is used or produced primarily for use in the manufacture of a legend drug by persons other than persons:
(A) licensed to manufacture the legend drug by the Indiana board of pharmacy;
(B) registered by the state department; or
(C) licensed to practice pharmacy by the Indiana board of pharmacy.