Supplier Page from Thermo Fisher Scientific for Calcium carbonate, ACS reagent, chelometric standard
Emodin, 95%, tech from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethylene glycol dimethyl ether, 99+%, extra pure, stabilized with BHT from Thermo Fisher Scientific