Supplier Page from Thermo Fisher Scientific for Sodium chloride crystal optic rectangle, 41mm x 23mm x 6mm (drilled), polished both sides
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Fluoranthene, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific