ContaminantDB: Entecavir

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-05-22 05:44:54 UTC

Update Date

2026-03-27 00:38:43 UTC

Accession Number

CHEM018998

Identification

Common Name

Entecavir

Class

Small Molecule

Description

Guanine substituted at the 9 position by a 4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl group. A synthetic analogue of 2'-deoxyguanosine, it is a nucleoside reverse transcriptase inhibitor with selective antiviral activity against hepatitis B virus. Entecavir is phosphorylated intracellularly to the active triphosphate form, which competes with deoxyguanosine triphosphate, the natural substrate of hepatitis B virus reverse transcriptase, inhibiting every stage of the enzyme's activity, although it has no activity against HIV. It is used for the treatment of chronic hepatitis B.

Contaminant Sources

HMDB Contaminants - Urine
STOFF IDENT Compounds
ToxCast & Tox21 Chemicals

Contaminant Type

Not Available

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
Baraclude	HMDB
Entecavir	ChEBI

Chemical Formula

C₁₂H₁₅N₅O₃

Average Molecular Mass

277.279 g/mol

Monoisotopic Mass

277.117 g/mol

CAS Registry Number

142217-69-4

IUPAC Name

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

Traditional Name

entecavir

SMILES

NC1=NC(=O)C2=C(N1)N(C=N2)[C@H]1C[C@H](O)[C@@H](CO)C1=C

InChI Identifier

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

InChI Key

QDGZDCVAUDNJFG-FXQIFTODSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as nucleoside and nucleotide analogues. These are analogues of nucleosides and nucleotides. These include phosphonated nucleosides, C-glycosylated nucleoside bases, analogues where the sugar unit is a pyranose, and carbocyclic nucleosides, among others.

Kingdom

Organic compounds

Super Class

Nucleosides, nucleotides, and analogues

Class

Nucleoside and nucleotide analogues

Sub Class

Not Available

Direct Parent

Nucleoside and nucleotide analogues

Alternative Parents

Substituents

6-oxopurine
Hypoxanthine
Purinone
Purine
Imidazopyrimidine
Aminopyrimidine
Pyrimidone
Cyclopentanol
Pyrimidine
N-substituted imidazole
Azole
Cyclic alcohol
Heteroaromatic compound
Imidazole
Vinylogous amide
Secondary alcohol
Azacycle
Organoheterocyclic compound
Primary alcohol
Primary amine
Alcohol
Organic nitrogen compound
Hydrocarbon derivative
Organic oxide
Organopnictogen compound
Organic oxygen compound
Amine
Organonitrogen compound
Organooxygen compound
Aromatic heteropolycyclic compound

Molecular Framework

Aromatic heteropolycyclic compounds

External Descriptors

secondary alcohol (CHEBI:473990 )
oxopurine (CHEBI:473990 )
primary alcohol (CHEBI:473990 )
2-aminopurines (CHEBI:473990 )

Biological Properties

Status

Detected and Not Quantified

Origin

Not Available

Cellular Locations

Not Available

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Not Available

Appearance

Not Available

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	6.59 g/L	ALOGPS
logP	-0.81	ALOGPS
logP	-1.4	ChemAxon
logS	-1.6	ALOGPS
pKa (Strongest Acidic)	8	ChemAxon
pKa (Strongest Basic)	2.77	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	7	ChemAxon
Hydrogen Donor Count	4	ChemAxon
Polar Surface Area	125.76 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	71 m³·mol⁻¹	ChemAxon
Polarizability	27.31 Å³	ChemAxon
Number of Rings	3	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-001j-3190000000-4c1e30013236fcf851e8	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positive	splash10-0a4l-4009600000-59f2f642d2b55baa6f98	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03fr-0090000000-fece17372f19f5c56b9b	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03dl-4190000000-2224afe131c0d7ffddeb	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0udi-2940000000-a8c2e92ba3db7d5cb611	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-004i-0090000000-f7f436db2922d84e90de	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0kdi-0290000000-c1ee67566ff6950ae6f0	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0zfu-5930000000-de30bdfb529397180104	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-004i-0190000000-7ffc04d8ffba36aeed92	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0fb9-0590000000-1b65c7578c809b708633	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0a4l-3910000000-a8e292ae929a7d25bd82	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0fb9-0890000000-debf13b5f5c060081554	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0fb9-0490000000-e8b9bbbb389fdfb1560f	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0udi-1920000000-f30d5851e10d4f2b16c5	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

Not Available

Uses/Sources

Not Available

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

DB00442

HMDB ID

HMDB0014585

FooDB ID

Not Available

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

Not Available

BioCyc ID

Not Available

METLIN ID

Not Available

PDB ID

Not Available

Wikipedia Link

Chemspider ID

ChEBI ID

PubChem Compound ID

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

Not Available

References

Synthesis Reference

Not Available

MSDS

Not Available

General References

Not Available

Entecavir (CHEM018998)

Structure for CHEM018998: Entecavir