Supplier Page from Thermo Fisher Scientific for µd-Valerolactone, 98%, may contain polymer
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific