Supplier Page from Thermo Fisher Scientific for Lead foil, 1.0mm (0.04in) thick, Puratronic:r, 99.9995% (metals basis)
Estrone, 99+% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific