T Nation

Are Research Chems Legal in 2013?

I’ve been studying different chemicals and will be completing research soon to apply to medical school; and I was wondering if I will be able to legally buy research chemicals for my lab rat? I don’t want to take any chances as I have heard it is a grey area of the law (analog law) but considering that tamoxifen, anastazole, letrozole, clomiphene, and sildenafil are not controlled substances, if a package gets seized will it become an issue?