Supplier Page from Thermo Fisher Scientific for Sulfobromophthalein sodium salt hydrate
2-Mercapto-1-methylimidazole, 98% from Thermo Fisher Scientific
4-Aminophenylacetic acid, 98% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Hexyl alcohol, 98%, pure from Thermo Fisher Scientific