Supplier Page from Thermo Fisher Scientific for 4-(2-Oxo-1-pyrrolidinyl)benzenesulfonyl chloride, 97%
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific