Supplier Page from Thermo Fisher Scientific for Erbium(III) perchlorate hexahydrate, 50% w/w in aq. soln., Reagent Grade
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific