Supplier Page from Thermo Fisher Scientific for Selenium shot, amorphous, 2-6mm (0.08-0.2in), Puratronic:r, 99.999% (metals basis)
Ethyl chloroacetate, 99% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific