Supplier Page from Thermo Fisher Scientific for Metaphosphoric acid, 39-43%, bal. NaPO{3} (Stabilizer)
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific