55586-14-6 Carbamimidothioic acid, 2-((2-methyl-1-oxo-2-propenyl)amino)ethyl ester, monohydrochloride, homopolymer ET 11 ET 11 (Methacrylic polymer) Poly(1-(((2-amidinothioethyl)amino)carbonyl)-1-methylethylene), hydrochloride