Supplier Page from Thermo Fisher Scientific for Sulfate, Quantofix:r Test Strips
Hesperidin, 97%, includes analogeous compounds from Thermo Fisher Scientific
L(+)-Lysine monohydrochloride, 99% from Thermo Fisher Scientific
Maleic acid, 99% from Thermo Fisher Scientific
Propionaldehyde, 99+% from Thermo Fisher Scientific