Supplier Page from Thermo Fisher Scientific for 12-Crown-4, 98%
(+)-5-Iodo-2'-deoxyuridine, 99% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
Oxytetracycline dihydrate, 95% from Thermo Fisher Scientific
Phenylselenol, 98% from Thermo Fisher Scientific