Structure based on 1eht

Ideal structure
Name: theophylline
Formula: C7 H8 N4 O2
Weight: 180.164
SMILES: "CN1C(=O)N(C)c2nc[nH]c2C1=O"
Spacial conformation based on PDB 1eht.
Also present in other 8 PDB entries.
RESIDUE   TEP     21
CONECT      C1     4 N1   H11  H12  H13 
CONECT      N1     3 C1   C2   C6  
CONECT      C2     3 N1   O2   N3  
CONECT      O2     1 C2  
CONECT      N3     3 C2   C3   C4  
CONECT      C3     4 N3   H31  H32  H33 
CONECT      C4     3 N3   C5   N9  
CONECT      C5     3 C4   C6   N7  
CONECT      C6     3 N1   C5   O6  
CONECT      O6     1 C6  
CONECT      N7     3 C5   C8   HN7 
CONECT      C8     3 N7   N9   H8  
CONECT      N9     2 C4   C8  
CONECT      H11    1 C1  
CONECT      H12    1 C1  
CONECT      H13    1 C1  
CONECT      H31    1 C3  
CONECT      H32    1 C3  
CONECT      H33    1 C3  
CONECT      HN7    1 N7  
CONECT      H8     1 C8  
HET    TEP             21
FORMUL      TEP    C7 H8 N4 O2

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