Supplier Page from Thermo Fisher Scientific for 1-(4-Nitrophenylazo)-2-naphthol
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific