Supplier Page from Cayman Chemical for RCS-4 2-methoxy isomer
5-fluoro PB-22 5-hydroxyisoquinoline isomer from Cayman Chemical
Benzodioxole fentanyl-d5 (hydrochloride) from Cayman Chemical
Cyclohexyl fentanyl (hydrochloride) from Cayman Chemical
N-(MDA) Fentanyl (hydrochloride) from Cayman Chemical