Supplier Page from Thermo Fisher Scientific for (-)-Erythromycin, Eur.Ph
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific