indigo

Structural formula Business number 052E Molecular formula C16H10N2O2 Molecular weight 262.26 label 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one, 2,2′-Bis(2,3-dihydro-3-oxo…