Supplier Page from Thermo Fisher Scientific for 5-(Tri-n-butylstannyl)pyrimidine, 96%
4-Isopropylbenzoic acid, 98+% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific
Semicarbazide hydrochloride, 99+% from Thermo Fisher Scientific