Supplier Page from Thermo Fisher Scientific for Naphthalene-1-sulfonic acid sodium salt, 99% (dry wt.), water <2%
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific