Supplier Page from Thermo Fisher Scientific for Thymol Blue sodium salt
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
Isonipecotic acid, 99% from Thermo Fisher Scientific
L(+)-Lysine monohydrochloride, 99% from Thermo Fisher Scientific