Supplier Page from Thermo Fisher Scientific for Methanesulfonic acid, 99%, extra pure
2-Ethylaniline, 98% from Thermo Fisher Scientific
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific