This might be a tad bit off topic but the smarter minds are here so...if a chemist wanted to make tamoxifen citrate (or any other chemical for that matter) what raw material would he start out with, and how would he do it?
First, you will need to aquire a bunch of pharmacutical grade labware. Your labratory should have an industrial grade HAC unit, as the fumes can be quite noxious. Make sure your area is zoned commercially for lab work. This will save time later
Next, I would recommend (though not absolutley necessary) that you create a shadow identity-ie social security# drivers liscense,ect. This will help in case your work recieves some unwanted interest from governing authorities.
Alternativley, you can apply for a research certification(this is rather costly and time consuming)
Now, you are ready to aquire your raw materials. Foriegn suppliers,usually in china or thailand, are the most cost effective choice. It is a good idea to have plenty of cash on hand to lube any custom delays you may encounter.
oh also if you don't have a chemistry background pick up a good book on the subject, Amazon is a good source for such material.
goodluck let us know how you make out!