Supplier Page from Thermo Fisher Scientific for Acetaldehyde, 99.5%, extra pure
Estrone, 99+% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific
Methyl 4-(chloroformyl)butyrate, 98% from Thermo Fisher Scientific
Oxytetracycline dihydrate, 95% from Thermo Fisher Scientific