Supplier Page from Thermo Fisher Scientific for Boron tribromide, 1M soln. in dichloromethane
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific