CC
C-N
C=S
C#B
C.Cl
C:C
C[.>-]C
C[->=]C
C[=>#]C
C[#>:]C
C[:>.]C
C1CC1
C12CC1C2
C%10CC%10
C=1C#2C=1CC#2
C=%11CC=%11
C(C)C
C(=C)C
C(CC)#C
[Fe]
[13C]
C-[12C]
C=[13C]
[C+4]
[C:14]
[C--:12]
[C@@H]
[C@H]
[OH2]
[OH3+]
[C+>-]
[C++>--]
[C-3>+2]
[C0>+]
[C-->0]
[C*>^]
[C^>*]
[C+>-*>^]
[C-3>+2^>*]
[C0>-*>^]
[C+2>0^>*]
O=S(=O)(N(C)C)N:1:C:C:N:C1[.>-][Zn+2>+]
