Supplier Page from Thermo Fisher Scientific for Chlorine in Heavy Mineral Oil standard solution, Specpure:r, 1000µmg/g (0.10%)
Estrone, 99+% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific