Supplier Page from Cayman Chemical for 3,4-difluoro U-49900 (hydrochloride)
4-methyl Fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical
5-fluoro AMB metabolite 7 (CRM) from Cayman Chemical
Butyryl fentanyl (hydrochloride) (CRM) from Cayman Chemical
Metamizole (sodium salt) from Cayman Chemical