Supplier Page from Thermo Fisher Scientific for 1,4-Diisocyanatobutane, 97%
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific