Supplier Page from Thermo Fisher Scientific for 2,5-Dimethylpyrrole-3-carboxylic acid, 97%
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific