139543-06-9 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7- tetrone,polymer with 1,4-benzenediamine and [1,1'-biphenyl]-3,3',4,4'-tetramine tetrahydrochloride
109961-29-7 Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, ether with N-[4-[[4-[bis(2-hydroxyethyl) amino]-2-methylphenyl](2-sulfophenyl)methylene ]-3-methyl-2,5-cyclohexadien-1-ylidene]-2-hydrox y-N-(2-hydroxyethyl)ethanaminium carbonate (salt) (4:1:1), monosodium sa