Supplier Page from Thermo Fisher Scientific for Tungsten rod, 3.175mm (0.125in) dia, annealed, 99.95% (metals basis)
Estrone, 99+% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific