Chemical structure search

Input SMILES: C=Cc1c2C=c3[n-]c(=Cc4[n-]c(C=c5[n-]c(=Cc(c1C)[n-]2)c(C=C)c5C)c(c4CCC(=O)O)C)c(c3C)CCC(=O)O.[Sn+4]

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To return all relevant hits please ensure that your input structure does not include chiral specification.