Supplier Page from Thermo Fisher Scientific for D(-)-Penicillamine, 99%, specified according to Ph.Eur. and USP
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific