Supplier Page from Thermo Fisher Scientific for 2,2,2-Trifluoroethylhydrazine, 70 wt% aqueous solution
1-Ethylpiperidine, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific