In addition to this provision, MolPort blocks trading of certain chemical compounds in our marketplace. We are currently compiling a list of these structures. We created our marketplace to make trading of rare laboratory chemicals easier. Controlled substances are well known and so are their suppliers. It is more appropriate to purchase these chemicals through your regular supplier.
If you find a structure in our commercially available compound database that is not blocked but should be, contact us and we will investigate the issue. Please, provide the source of your information.