Supplier Page from Thermo Fisher Scientific for 1,1'-Thiocarbonyldiimidazole, 90%, tech
Adipic acid, 99% from Thermo Fisher Scientific
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
L-Alanine, 99% from Thermo Fisher Scientific
L-Serine, 99% from Thermo Fisher Scientific