Supplier Page from Cayman Chemical for Bipiperidinyl 4-ANPP
4'-methyl Fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical
4-methyl Fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical
meta-Fluoroisobutyryl fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical
para-fluoro 4-Anilino-1-Boc-piperidine from Cayman Chemical