Supplier Page from Thermo Fisher Scientific for p-Toluenesulfinic acid, sodium salt, 97%, anhydrous
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific