Supplier Page from Thermo Fisher Scientific for Sodium hydroxide, 30% w/w aq. soln
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
2-Ethylaniline, 98% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific