Supplier Page from Thermo Fisher Scientific for Ytterbium(III) nitrate hydrate, REacton:r, 99.99% (REO)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific