Structure based on 1ej3

Ideal structure
Name: c2-hydroperoxy-coelenterazine
Formula: C26 H21 N3 O5
Weight: 455.462
SMILES: "OO[C]1(Cc2ccc(O)cc2)N=C3N(C=C(N=C3Cc4ccccc4)c5ccc(O)cc5)C1=O"
Spacial conformation based on PDB 1ej3.
Also present in other 10 PDB entries.
RESIDUE   CZH     55
CONECT      N1     2 C2   C9  
CONECT      C2     4 N1   C3   C10  O33 
CONECT      C3     3 C2   N4   O18 
CONECT      N4     3 C3   C5   C9  
CONECT      C5     3 N4   C6   H5  
CONECT      C6     3 C5   N7   C19 
CONECT      N7     2 C6   C8  
CONECT      C8     3 N7   C9   C26 
CONECT      C9     3 N1   N4   C8  
CONECT      C10    4 C2   C11  H101 H102
CONECT      C11    3 C10  C12  C16 
CONECT      C12    3 C11  C13  H12 
CONECT      C13    3 C12  C14  H13 
CONECT      C14    3 C13  C15  O17 
CONECT      C15    3 C14  C16  H15 
CONECT      C16    3 C11  C15  H16 
CONECT      O17    2 C14  H17 
CONECT      O18    1 C3  
CONECT      C19    3 C6   C20  C24 
CONECT      C20    3 C19  C21  H20 
CONECT      C21    3 C20  C22  H21 
CONECT      C22    3 C21  C23  O25 
CONECT      C23    3 C22  C24  H23 
CONECT      C24    3 C19  C23  H24 
CONECT      O25    2 C22  H25 
CONECT      C26    4 C8   C27  H261 H262
CONECT      C27    3 C26  C28  C32 
CONECT      C28    3 C27  C29  H28 
CONECT      C29    3 C28  C30  H29 
CONECT      C30    3 C29  C31  H30 
CONECT      C31    3 C30  C32  H31 
CONECT      C32    3 C27  C31  H32 
CONECT      O33    2 C2   O34 
CONECT      O34    2 O33  H34 
CONECT      H5     1 C5  
CONECT      H101   1 C10 
CONECT      H102   1 C10 
CONECT      H12    1 C12 
CONECT      H13    1 C13 
CONECT      H15    1 C15 
CONECT      H16    1 C16 
CONECT      H17    1 O17 
CONECT      H20    1 C20 
CONECT      H21    1 C21 
CONECT      H23    1 C23 
CONECT      H24    1 C24 
CONECT      H25    1 O25 
CONECT      H261   1 C26 
CONECT      H262   1 C26 
CONECT      H28    1 C28 
CONECT      H29    1 C29 
CONECT      H30    1 C30 
CONECT      H31    1 C31 
CONECT      H32    1 C32 
CONECT      H34    1 O34 
END   
HET    CZH             55
HETSYN     CZH 8-BENZYL-2-HYDROPEROXY-2-(4-HYDROXY-BENZYL)-6-(4-HYDROX
HETSYN   2 CZH Y-PHENYL)-2H-IMIDAZO[1,2-A]PYRAZIN-3-ONE
HETNAM     CZH C2-HYDROPEROXY-COELENTERAZINE
FORMUL      CZH    C26 H21 N3 O5

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