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67088-66-8 4h-pyran-3,5-dicarboxaldehyde, 4-ethynyl-, bis(phenylhydrazone)

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Product Name 4H-Pyran-3,5-dicarboxaldehyde, 4-ethynyl-, bis(phenylhydrazone)
CAS No. 67088-66-8
Molecular Formula C21H18N4O