[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8- tetrone,polymer with 2-(4-aminophenyl)-1H-benzimidazol-5- amine (CAS NO. : 117955-19-8 )
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[ > [2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8- tetrone,polymer with 2-(4-aminophenyl)-1H-benzimidazol-5- amine
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