Supplier Page from Thermo Fisher Scientific for Potassium hydrogen phthalate, 99.99%, acidimetric standard
2-Fluoroaniline, 99+% from Thermo Fisher Scientific
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific