Your references are a bit on the risque side. But your point about having manufacturing capability that meets Current Good Manufacturing Practice (CGMPs) regulation for human pharmaceuticals is important.
That is necessary part of the process for gaining approval.
So there we have it I guess it takes 1 million bucks of the stuff to keep the FDA properly lubed
We must have bought enough for one batch or enough for multiples w/same batch### process. So one million$ per A2-73 batch buys enough material to ensure process control. Sounds like that is what he did. No idea how many doses that is but until a demand for continuous manufacturing of A2-73 we will keep using the batch method like 90+% of the ROW does. I guess.