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Pyrrolidinium,1-[2-(2-oxo-2H-1-benzopyran-3-yl)-7H-1-benzopyran-7-ylidene]-,perchlorate
CAS:81190-11-6
Formula:C22H18NO3.ClO4
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Pyrrolidinium,1-[3-(2H-1-benzopyran-2-ylidene)-2,3-dihydro-2-oxo-7H-1-benzopyran-7-ylidene]-, perchlorate
CAS:81190-15-0
Formula:C22H18NO3.ClO4
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