Supplier Page from Thermo Fisher Scientific for Poly(ethylene oxide), M.W. 250,000 to 400,000
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific