Supplier Page from Thermo Fisher Scientific for Betaine hydrochloride, 99%, extra pure, specified according to the requirements of USP
2-Ethylaniline, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethylcyclohexane, 99+% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific