Supplier Page from Thermo Fisher Scientific for µa,µa,µa',µa'-Tetrabromo-o-xylene, 97%
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific