poly((3,3''-di(S)-5-amino-5-carbonyl-3-oxapentyl)-(2,2'-5',2''))-5,5''-terthiophenylene hydrochloride
poly((3,3''-di(s)-5-amino-5-carbonyl-3-oxapentyl)-(2,2'-5',2''))-5,5''-terthiophenylene hydrochloride