A1CQ3

6-(methylsulfanyl)-9-(5-O-phosphono-beta-D-ribofuranosyl)-9H-purine

Created:	2025-08-25
Last modified:	2026-06-03

Find Related PDB Entry
1 entries where A1CQ3 is found as a standalone ligand

Find related ligands: Help
Similar Ligands (Stereospecific) Similar Ligands (including Stereoisomers) Similar Ligands (Quick Screen) Similar Ligands (Substructure Stereospecific) Similar Ligands (Substructure including Stereoisomers)

Chemical Details
Formal Charge	0
Atom Count	39
Chiral Atom Count	4
Bond Count	41
Aromatic Bond Count	10

2D diagram of A1CQ3

Toggle Hydrogen Toggle Labels

Chemical Component Summary
Name	6-(methylsulfanyl)-9-(5-O-phosphono-beta-D-ribofuranosyl)-9H-purine
Systematic Name (OpenEye OEToolkits)	[(2~{R},3~{S},4~{R},5~{R})-5-(6-methylsulfanylpurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl dihydrogen phosphate
Formula	C₁₁ H₁₅ N₄ O₇ P S
Molecular Weight	378.298
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=P(O)(O)OCC1OC(n2cnc3c2ncnc3SC)C(O)C1O
SMILES	CACTVS	3.385	CSc1ncnc2n(cnc12)[CH]3O[CH](CO[P](O)(O)=O)[CH](O)[CH]3O
SMILES	OpenEye OEToolkits	3.1.0.0	CSc1c2c(ncn1)n(cn2)C3C(C(C(O3)COP(=O)(O)O)O)O
Canonical SMILES	CACTVS	3.385	CSc1ncnc2n(cnc12)[C@@H]3O[C@H](CO[P](O)(O)=O)[C@@H](O)[C@H]3O
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	CSc1c2c(ncn1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)O)O)O
InChI	InChI	1.06	InChI=1S/C11H15N4O7PS/c1-24-10-6-9(12-3-13-10)15(4-14-6)11-8(17)7(16)5(22-11)2-21-23(18,19)20/h3-5,7-8,11,16-17H,2H2,1H3,(H2,18,19,20)/t5-,7-,8-,11-/m1/s1
InChIKey	InChI	1.06	BMYFUCYXRGTQQL-IOSLPCCCSA-N

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.