Supplier Page from Thermo Fisher Scientific for HEPES, 0.5M buffer soln., pH 8.5
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
3-Fluoroaniline, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific