Supplier Page from Thermo Fisher Scientific for (S)-alpha-Methyltryptophan hemihydrate, 98%, 98% ee
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific