Supplier Page from Thermo Fisher Scientific for Fluorescein, pure
1,2-Ethanedithiol, 95% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethylmercurithiosalicylic acid, sodium salt, 97.0-101.0% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific