Supplier Page from Thermo Fisher Scientific for Potassium sorbate, 99%
Diethyl carbonate, 99% from Thermo Fisher Scientific
L(+)-Lysine monohydrochloride, 99% from Thermo Fisher Scientific
Norcamphor, 99% from Thermo Fisher Scientific
trans-4-Hydroxy-L-proline, 99+% from Thermo Fisher Scientific