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smiles:CCCN1C(=O)C2=C(NC1=O)N=CN2
Read as SMILES
read as SMILES
C
0
C
1
C
2
N
3
C
4
O
5
C
6
C
7
N
8
H
C
9
O
10
N
11
C
12
N
13
H
Hydrogens
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Carbon labels
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Atom numbers
R/S labels
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