Structure based on 3r7e

Ideal structure
Name: 5-nitro-2-[(pyrazin-2-ylmethyl)amino]benzamide
Formula: C12 H11 N5 O3
Weight: 273.247
SMILES: "NC(=O)c1cc(ccc1NCc2cnccn2)[N+]([O-])=O"
Spacial conformation based on PDB 3r7e
RESIDUE   X88     31
CONECT      C1     3 C2   C6   H1  
CONECT      C2     3 C1   C3   H2  
CONECT      C3     3 C2   C4   N11 
CONECT      C4     3 C3   C5   H4  
CONECT      C5     3 C4   C6   C8  
CONECT      C6     3 C1   C5   N7  
CONECT      N7     3 C6   C14  HN7 
CONECT      C8     3 C5   N9   O10 
CONECT      N9     3 C8   HN9  HN9A
CONECT      O10    1 C8  
CONECT      N11    3 C3   O12  O13 
CONECT      O12    1 N11 
CONECT      O13    1 N11 
CONECT      C14    4 N7   C18  H14  H14A
CONECT      C15    3 N16  C20  H15 
CONECT      N16    2 C15  C17 
CONECT      C17    3 N16  C18  H17 
CONECT      C18    3 C14  C17  N19 
CONECT      N19    2 C18  C20 
CONECT      C20    3 C15  N19  H20 
CONECT      H1     1 C1  
CONECT      H2     1 C2  
CONECT      H4     1 C4  
CONECT      HN7    1 N7  
CONECT      HN9    1 N9  
CONECT      HN9A   1 N9  
CONECT      H14    1 C14 
CONECT      H14A   1 C14 
CONECT      H15    1 C15 
CONECT      H17    1 C17 
CONECT      H20    1 C20 
END   
HET    X88             31
HETNAM     X88 5-nitro-2-[(pyrazin-2-ylmethyl)amino]benzamide
FORMUL      X88    C12 H11 N5 O3

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