Supplier Page from Thermo Fisher Scientific for Hexavalent Chromium, standard solution, Specpure:r, Cr:+6 1000µg/mL
2-Fluoroaniline, 99+% from Thermo Fisher Scientific
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific