label: poly((2,5-bis(3-(N,N-diethylamino)-1-oxapropyl)-para-phenylenevinylene)-alt-para-phenylenevinylene) dibromide
label_lc: poly((2,5-bis(3-(n,n-diethylamino)-1-oxapropyl)-para-phenylenevinylene)-alt-para-phenylenevinylene) dibromide