Itaconic acid bis-(3-sulfopropyl)-ester, di-potassium salt

butanedioic acid,2-methylene-, 1,4-bis(3-sulfopropyl) ester, potassium salt (1:2) ; butanedioicacid, methylene-, bis(3-sulfopropyl) ester, dipotassium salt (9ci) ; 2-methylenebutanedioic acid bis[3-(potassiosulfo)propyl] ester ; 2-methylenesuccinic acid bis[3-(potassiosulfo)propyl] ester ; itaconic acid (3-sulfopropyl)-ester dipotassium salt ; dipotassium bis(3-sulphonatopropyl) methylenesuccinate ; spi ; bis-(3-sulfopropyl)-itaconic acid ester, dipotassium salt ; bis(3-sulfopropyl) itaconate, dipotassium salt ; butanedioic acid, methylene bis-(3-sulfopropyl)ester, di potassium sal ; 3,3'-[2-propene-1,2-diylbis(carbonyloxy)]bis(1-propanesulfonic acid potassium) salt ; itaconic acid-bis-(3-sulfopropyl)ester,di-potassium salt