Supplier Page from Thermo Fisher Scientific for Iodine, 0.1 N standard solution
Ethyl chrysanthemate, 95%, mixture of cis and trans from Thermo Fisher Scientific
Hydroquinone, 99% from Thermo Fisher Scientific
L(+)-Lysine monohydrochloride, 99% from Thermo Fisher Scientific
Methyl acetoacetate, 99+% from Thermo Fisher Scientific