Structure based on 1gfz

Ideal structure
Name: caffeine
Formula: C8 H10 N4 O2
Weight: 194.191
SMILES: "Cn1cnc2N(C)C(=O)N(C)C(=O)c12"
Spacial conformation based on PDB 1gfz.
Also present in other 10 PDB entries.
RESIDUE   CFF     24
CONECT      N1     3 C2   C10  C6  
CONECT      C2     3 N1   N3   O11 
CONECT      C10    4 N1   H101 H102 H103
CONECT      C6     3 N1   C5   O13 
CONECT      N3     3 C2   C12  C4  
CONECT      O11    1 C2  
CONECT      C12    4 N3   H121 H122 H123
CONECT      C4     3 N3   C5   N9  
CONECT      C5     3 C6   C4   N7  
CONECT      N9     2 C4   C8  
CONECT      O13    1 C6  
CONECT      N7     3 C5   C8   C14 
CONECT      C8     3 N9   N7   H81 
CONECT      C14    4 N7   H141 H142 H143
CONECT      H101   1 C10 
CONECT      H102   1 C10 
CONECT      H103   1 C10 
CONECT      H121   1 C12 
CONECT      H122   1 C12 
CONECT      H123   1 C12 
CONECT      H81    1 C8  
CONECT      H141   1 C14 
CONECT      H142   1 C14 
CONECT      H143   1 C14 
END   
HET    CFF             24
HETSYN     CFF 3,7-DIHYDRO-1,3,7-TRIMETHYL-1H-PURINE-2,6-DIONE
HETNAM     CFF CAFFEINE
FORMUL      CFF    C8 H10 N4 O2

This OCA MONOMER page
uses Jmol, developed by the Jmol Development Team (color reference)
OCA© by Jaime Prilusky, 1996-2004,2006,2010,2014
Bioinformatics Unit
Weizmann Institute of Science