Supplier Page from Thermo Fisher Scientific for 4-(2-Pyridylazo)resorcinol monosodium salt monohydrate
2-Heptanol, 99+% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific
L(+)-Prolinol, 95% from Thermo Fisher Scientific
Methyl chloroformate, 99% from Thermo Fisher Scientific