Supplier Page from Thermo Fisher Scientific for Silver tubing, 6.35mm (0.25in) OD, 5.84mm (0.230in) ID, 99.9% (metals basis)
Ergosterol, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific