Supplier Page from Cayman Chemical for 3,4-difluoro U-47700
3,4-methylenedioxy-α-methylamino-Isovalerophenone (hydrochloride) from Cayman Chemical
4'-methyl Fentanyl (hydrochloride) (exempt preparation) from Cayman Chemical
4-Methylphenmetrazine (hydrochloride) from Cayman Chemical
JWH 250 N-(5-hydroxypentyl) metabolite-d5 from Cayman Chemical