Supplier Page from Thermo Fisher Scientific for 1-Octanesulfonic acid, sodium salt, HPLC grade
Ethyl 4-chlorobutyrate, 97% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Glutaric dialdehyde, 25 wt.% solution in water from Thermo Fisher Scientific