Here in Germany, you used to be able to buy chemicals at pharmacies. Then, the EU plus the usual German compliance-by-the-letter came along... the EU imposed serious controls on chemicals because many can be used to make bombs (e.g. acetone plus hydrogen peroxide yields APEX/TATP) or various illicit drugs. That legislation now not just requires a bullshit amount of paperwork for each transaction but also requires pharmacy staff to pass and renew a certification for dealing with chemicals. No, the actual doctor in pharmaceuticals that one needs to pass to open a pharmacy is not enough.
As a result, nearly all pharmacies here dropped the entire lines of making medication on-site and selling chemicals, because only the latter kept the former financially viable.
So, your only options left are either: a) buy from Amazon or eBay sellers that outright don't care about the German peculiarities or b) if you manage to qualify, buy from the usual selection of lab supply wholesalers. But something like "start a German NileRed channel", that's completely out of the question. The kind of stuff he buys, no way to get that without a commercial entity, and good luck getting that in place without at least a bachelor's degree in chemistry.
As a result, nearly all pharmacies here dropped the entire lines of making medication on-site and selling chemicals, because only the latter kept the former financially viable.
So, your only options left are either: a) buy from Amazon or eBay sellers that outright don't care about the German peculiarities or b) if you manage to qualify, buy from the usual selection of lab supply wholesalers. But something like "start a German NileRed channel", that's completely out of the question. The kind of stuff he buys, no way to get that without a commercial entity, and good luck getting that in place without at least a bachelor's degree in chemistry.