Supplier Page from Thermo Fisher Scientific for 5-Norbornene-2-carboxylic acid, 98%, mixture of isomers
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific