Supplier Page from Thermo Fisher Scientific for PTFE Beaker Cover-Watch Glass;Dia (mm), 100;Fits Beakers, 500ml
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific