Supplier Page from Thermo Fisher Scientific for 3-[(Trimethylsilyl)ethynyl]pyridine, 97%
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific