Supplier Page from Thermo Fisher Scientific for Arsenic standard solution, for AAS, 1 µg/mL As in 2% KOH
Epichlorohydrin, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific