Supplier Page from Thermo Fisher Scientific for 1,3-Bis(diphenylphosphino)propane, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific