Supplier Page from Thermo Fisher Scientific for Copper(II) hexafluoro-2,4-pentanedionate hydrate, 99.99% (metals basis)
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
5-Hydroxyindole-3-acetic acid, 99% from Thermo Fisher Scientific
D-Cystine, 98% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific