Supplier Page from Thermo Fisher Scientific for p-Toluenesulfinic acid sodium salt, 97% (dry wt.), water <5%
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific