Supplier Page from Thermo Fisher Scientific for Iodine, 0.1N Standardized Solution
2,6-Lutidine, 99% from Thermo Fisher Scientific
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
Diethyl carbonate, 99% from Thermo Fisher Scientific
trans-4-Hydroxy-L-proline, 99+% from Thermo Fisher Scientific