Supplier Page from Thermo Fisher Scientific for Copper(II) hexafluoro-2,4-pentanedionate hydrate, 99.99% (metals basis)
2-Mercapto-1-methylimidazole, 98% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific
Semicarbazide hydrochloride, 99+% from Thermo Fisher Scientific