Supplier Page from Thermo Fisher Scientific for Magnesium sulfate, dried, contains ca 1-2 mol water of hydration
Dotriacontane, 97% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific