Supplier Page from Thermo Fisher Scientific for Indigo carmine
1,6-Hexanediol, 97% from Thermo Fisher Scientific
Ethyl chrysanthemate, 95%, mixture of cis and trans from Thermo Fisher Scientific
L(+)-Histidine methyl ester dihydrochloride, 97% from Thermo Fisher Scientific
Methyl 5-bromovalerate, 97% from Thermo Fisher Scientific