Supplier Page from Thermo Fisher Scientific for Bromothymol Blue sodium salt, ACS reagent
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific