Supplier Page from Thermo Fisher Scientific for 2,5-Dibromobenzaldehyde, 97%
Ergosterol, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific