Supplier Page from Thermo Fisher Scientific for 3-Amino-2,4,6-triiodobenzoic acid, 99% (dry wt.), water <4%
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific