Supplier Page from Thermo Fisher Scientific for Niobium, AAS standard solution, Specpure:r, Nb 1000µg/mL
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific