HPMA; 2-Hydroxypropyl methacrylamide; Methacrylic acid 2-hydroxypropyl; HPMA; Hydrolyzed Polymaleic Anhydride; poly(maleicacid); Polymaleic Acid; MALEIC ACID POLYMER;Polymaleic Acid; N-(2-Hydroxypropyl)methacrylamide; CAS NO:26099-09-2 ; CAS NO:21442-01-3