Supplier Page from Thermo Fisher Scientific for Cytosine, 99+%
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
2-Fluoroaniline, 99+% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific