Supplier Page from Thermo Fisher Scientific for Sulfur in Diesel Fuel standard solution, Specpure:r, 500µmg/g (0.050%)
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific