Structure based on 1i3u

Ideal structure
Name: 5-(4,6-diamino-[1,3,5]triazin-2-ylamino)-4-hydroxy-3-(2-sulfo-phenylazo)-naphthalene-2,7-disulfonic acid
Formula: C19 H16 N8 O10 S3
Weight: 612.573
SMILES: "Nc1nc(N)nc(Nc2cc(cc3cc(c(N=Nc4ccccc4[S](O)(=O)=O)c(O)c23)[S](O)(=O)=O)[S](O)(=O)=O)n1"
Spacial conformation based on PDB 1i3u
RESIDUE   RR1     56
CONECT      O89    2 S85  H89 
CONECT      O90    1 S85 
CONECT      O92    1 S85 
CONECT      S85    4 O89  O90  O92  C10 
CONECT      C10    3 S85  C11  C4  
CONECT      C11    3 C10  C12  H11 
CONECT      C12    3 C11  C13  H12 
CONECT      C13    3 C12  C14  H13 
CONECT      C14    3 C13  C4   H14 
CONECT      C4     3 C10  C14  N1  
CONECT      C5     3 C3   C6   O28 
CONECT      C3     3 C5   C9   N2  
CONECT      C9     3 C3   C8   S35 
CONECT      C8     3 C9   C7   HC8 
CONECT      C7     3 C8   C6   C18 
CONECT      C6     3 C5   C7   C15 
CONECT      C15    3 C6   C16  N19 
CONECT      C16    3 C15  C17  H16 
CONECT      C17    3 C16  C18  S36 
CONECT      C18    3 C7   C17  H18 
CONECT      O28    2 C5   H28 
CONECT      O37    2 S36  H37 
CONECT      O38    1 S36 
CONECT      O41    1 S36 
CONECT      S36    4 C17  O37  O38  O41 
CONECT      O39    2 S35  H39 
CONECT      O40    1 S35 
CONECT      O42    1 S35 
CONECT      S35    4 C9   O39  O40  O42 
CONECT      N1     2 C4   N2  
CONECT      N2     2 C3   N1  
CONECT      N19    3 C15  C20  H19 
CONECT      C20    3 N19  N21  N25 
CONECT      N21    2 C20  C22 
CONECT      C22    3 N21  N23  NL2 
CONECT      N23    2 C22  C24 
CONECT      C24    3 N23  N25  NL1 
CONECT      N25    2 C20  C24 
CONECT      NL1    3 C24  HL11 HL12
CONECT      NL2    3 C22  HL21 HL22
CONECT      H89    1 O89 
CONECT      H11    1 C11 
CONECT      H12    1 C12 
CONECT      H13    1 C13 
CONECT      H14    1 C14 
CONECT      HC8    1 C8  
CONECT      H16    1 C16 
CONECT      H18    1 C18 
CONECT      H28    1 O28 
CONECT      H37    1 O37 
CONECT      H39    1 O39 
CONECT      H19    1 N19 
CONECT      HL11   1 NL1 
CONECT      HL12   1 NL1 
CONECT      HL21   1 NL2 
CONECT      HL22   1 NL2 
END   
HET    RR1             56
HETSYN     RR1 REACTIVE RED 1 DYE
HETNAM     RR1 5-(4,6-DIAMINO-[1,3,5]TRIAZIN-2-YLAMINO)-4-HYDROXY-3-(2
HETNAM   2 RR1 -SULFO-PHENYLAZO)-NAPHTHALENE-2,7-DISULFONIC ACID
FORMUL      RR1    C19 H16 N8 O10 S3

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