Supplier Page from Thermo Fisher Scientific for 4-Oxo-4H-1-benzopyran-2-carboxylic acid, 97%
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethoxymethylenemalononitrile, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific