Supplier Page from Cayman Chemical for R-6890
2,3,5-Trimethoxyamphetamine (hydrochloride) from Cayman Chemical
4-Piperidone (hydrochloride hydrate) from Cayman Chemical
HMMA (hydrochloride) from Cayman Chemical
Meperidine-d5 (hydrochloride) (exempt preparation) from Cayman Chemical