Supplier Page from Thermo Fisher Scientific for Ethanol, Alcohol Reagent, anhydrous, denatured, ACS, 94-96%
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific