Supplier Page from Thermo Fisher Scientific for Niobium(V) oxide, Puratronic:r, 99.9985% (metals basis)
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific