Supplier Page from Cayman Chemical for Norfentanyl-d5 (CRM)
α-Piperidinobutiophenone (hydrochloride) from Cayman Chemical
4-Methylphenmetrazine (hydrochloride) from Cayman Chemical
Benzodioxole fentanyl-d5 (hydrochloride) from Cayman Chemical
meta-Fluoroisobutyryl fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical