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smiles:C1=C(C=C(C=C1N)N=C(N)N)C(=O)O
Read as SMILES
read as SMILES
0
1
2
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N
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N
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N
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N
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O
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O
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H
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H
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H
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H
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H
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H
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H
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H
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H
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H
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Hydrogens
Carbon labels
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Atom numbers
R/S labels
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