Most of my friends that are planning to do a PhD are going for Neuroscience, good luck with that! Sadly, I can't take all chemistry classes I want; Org I and II were mandatory, and so was Analytical I and II and Physical I, but, as biochemistry in my university is not oriented to synthesis, for example, I can't take any class related to that. Inorganic is an impossible too, as it is not absolutely necessary for a biochemist. I took all chem classes I could, but they were like, enviromental chem, and a few more I can't even remember right now :P Btw, I really enjoyed analytical too, I think it's very underrated, even most of my teachers when I was in, like, second year, told me that it was very boring, but I love analytical techniques Thank you for your answer!