2H-INDEN-2-ONE, 1,3-BIS[(1,3-DIHYDRO-1,3,3-TRIMETHYL-2H-INDOL-2-YLIDENE)ETHYLIDENE]-1,3-DIHYDRO-;1,3-BIS[(E)-2-(1,3,3-TRIMETHYL-1,3-DIHYDRO-2H-INDOL-2-YLIDENE)ETHYLIDENE]-1,3-DIHYDRO-2H-INDEN-2-ONE
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