Supplier Page from Thermo Fisher Scientific for Benzenesulfonic acid, tech. ca 75% w/w aq. soln
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific