Supplier Page from Thermo Fisher Scientific for Sodium n-dodecyl sulfate, 99% (dry wt.), water <1.5%
Estrone, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific