Supplier Page from Thermo Fisher Scientific for trans,trans-2,4-Undecadienal, 90+%, remainder mainly trans,cis isomer
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific