Molecule record

2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one

C12H15N5O3

277.28 g/mol

Loading structure

Molecular properties

Formula
C12H15N5O3
Molar mass
277.28 g·mol−1
Exact mass
277.1175 Da
8
PubChem CID
135398508

Functional groups

Alcohol
Alkane / alkyl carbon
Alkene
Aromatic ring
Primary amine

Physical properties

No source-backed physical properties are curated for this molecule yet.

Common names and synonyms

  • 142217-69-4
  • 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6,9-dihydro-3H-purin-6-one
  • 5968Y6H45M
  • 604-279-5
  • 6H-Purin-6-One, 2-Amino-1,9-Dihydro-9-((1S,3R,4S)-4-Hydroxy-3-(Hydroxymethyl)-2-Methylenecyclopentyl)-Monohydrate
  • 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-
  • 9-((1S,3R,4S)-4-Hydroxy-3-(Hydroxymethyl)-2-Methylenecyclopentyl)Guanine Monohydrate
  • BMS 200475
Show all 24 synonyms
  • BMS-200475-01
  • BMS-20047501
  • BMS20047501
  • Baraclude
  • CHEBI:473990
  • DTXCID2026446
  • DTXSID4046446
  • Entecavir
  • Entecavir anhydrous
  • Entecavirum
  • J05AF10
  • NNU2O4609D
  • RefChem:5792
  • SQ-34676
  • SQ34676
  • anhydrous entecavir

Structure identifiers

Canonical SMILES
C=C1[C@H](CO)[C@@H](O)C[C@@H]1n1cnc2c(=O)[nH]c(N)nc21
Isomeric SMILES
C=C1[C@H](C[C@@H]([C@H]1CO)O)N2C=NC3=C2N=C(NC3=O)N
InChI
InChI=1S/C12H15N5O3/c1-5-6(3-18)8(19)2-7(5)17-4-14-9-10(17)15-12(13)16-11(9)20/h4,6-8,18-19H,1-3H2,(H3,13,15,16,20)/t6-,7-,8-/m0/s1
InChIKey
QDGZDCVAUDNJFG-FXQIFTODSA-N
PubChem CID
135398508

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library
No redistributable or simulated spectroscopy record is attached yet.

Simulated NMR

On-demand educational prediction for 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one; not experimental data.

Sources

Molecule identity

Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.

Open source record