Supplier Page from Thermo Fisher Scientific for Tantalum slug, 3.175mm (0.125in) dia x 3.175mm (0.125in) length, 99.95% (metals basis)
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific