Supplier Page from Thermo Fisher Scientific for Ammonium iron(II) sulfate hexahydrate, ACS, 98.5-101.5%
Ethyl chloroacetate, 99% from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific