Supplier Page from Thermo Fisher Scientific for (Formylmethylene)triphenylphosphorane, 97%, may cont. up to ca 3% water
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethanethiol, 99+% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific