Supplier Page from Thermo Fisher Scientific for Pyridine hydrobromide perbromide, tech. 90%
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
DL-Menthol, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Glyoxalbis(2-hydroxyanil), 97% from Thermo Fisher Scientific