Supplier Page from Thermo Fisher Scientific for Phosphorus, Oil based standard solution, Specpure:r, P 5000µmg/g
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific