POPS(Propargyl-3-sulfopropyl ether, sodium salt) Trade name:POPS Chemical name:Propargyl-3-sulfopropyl ether, sodium salt Molecular formula:C6H9O4SNa CAS:30290-53-0 Assay:45% Appearance:Yellowish liquid Application:Brightening agent for nickel plating, it has good leveling effect Together with PPS,PPS-OH.