Supplier Page from Thermo Fisher Scientific for Methacrylic anhydride, 94%, stab. with ca 0.2% 2,4-dimethyl-6-tert-butylphenol
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific