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    Home / ENTECAVIR / 2-amino-9-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-3H-purin-6(9H)-one
    2-amino-9-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-3H-purin-6(9H)-one

    2-amino-9-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-3H-purin-6(9H)-one

    Synonym

    2-amino-9-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C12H13N5O3

    Molecular Weight

    275.27

    Catalogue Number

    AR-E01431

    Parent Drug

    ENTECAVIR

    Common Package:10,25,50,100 mg

    Collections: ENTECAVIR

    Category: AR-E01431 C12H13N5O3 ENTECAVIR

    RELATED PRODUCTS
    2-amino-9-((1S,3R,4S)-4-(dimethyl(phenyl)silyl)-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Synonym

    2-amino-9-((1S,3R,4S)-4-(dimethyl(phenyl)silyl)-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C20H25N5O2Si

    Molecular Weight

    395.54

    Catalogue Number

    AR-E01439

    Parent Drug

    ENTECAVIR
    2-amino-7-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(7H)-one

    Synonym

    2-amino-7-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(7H)-one

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.28

    Catalogue Number

    AR-E01438

    Parent Drug

    ENTECAVIR
    2-amino-7-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-1H-purin-6(7H)-one

    Synonym

    2-amino-7-((1S,3R)-3-(hydroxymethyl)-2-methylene-4-oxocyclopentyl)-1H-purin-6(7H)-one

    Molecular Formula

    C12H13N5O3

    Molecular Weight

    275.27

    Catalogue Number

    AR-E01437

    Parent Drug

    ENTECAVIR
    Entecavir N-Oxide

    Synonym

    2-amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-6-oxo-6,9-dihydro-3H-purine 7-oxide

    Molecular Formula

    C12H15N5O4

    Molecular Weight

    293.28

    Catalogue Number

    AR-E01436

    Parent Drug

    ENTECAVIR
    5-((diaminomethylene)amino)-1-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-oxocyclopentyl)-1H-imidazole-4-carboxylic acid

    Synonym

    5-((diaminomethylene)amino)-1-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-oxocyclopentyl)-1H-imidazole-4-carboxylic acid

    Molecular Formula

    C11H15N5O5

    Molecular Weight

    297.27

    Catalogue Number

    AR-E01435

    Parent Drug

    ENTECAVIR
    N-(2,5-diamino-6-oxo-3,6-dihydropyrimidin-4-yl)-N-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-oxocyclopentyl)formamide

    Synonym

    N-(2,5-diamino-6-oxo-3,6-dihydropyrimidin-4-yl)-N-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-oxocyclopentyl)formamide

    Molecular Formula

    C11H15N5O5

    Molecular Weight

    297.27

    Catalogue Number

    AR-E01434

    Parent Drug

    ENTECAVIR
    2-amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-oxocyclopentyl)-3H-purin-6(9H)-one

    Synonym

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

    Molecular Formula

    C11H13N5O4

    Molecular Weight

    279.26

    Catalogue Number

    AR-E01433

    Parent Drug

    ENTECAVIR
    (1R,3S)-3-(2-amino-6-oxo-3H-purin-9(6H)-yl)-2-methylene-5-oxocyclopentanecarbaldehyde

    Synonym

    (1R,3S)-3-(2-amino-6-oxo-3H-purin-9(6H)-yl)-2-methylene-5-oxocyclopentanecarbaldehyde

    Molecular Formula

    C12H11N5O3

    Molecular Weight

    273.25

    Catalogue Number

    AR-E01432

    Parent Drug

    ENTECAVIR
    (1S,2S,3R,4S)-2-(2-amino-6-(benzyloxy)-9H-purin-9-yl)-4-(benzyloxy)-3-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1S,2S,3R,4S)-2-(2-amino-6-(benzyloxy)-9H-purin-9-yl)-4-(benzyloxy)-3-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C32H33N5O4

    Molecular Weight

    551.65

    Catalogue Number

    AR-E01430

    Parent Drug

    ENTECAVIR
    (1R,2S,3S,5R)-5-(2-amino-6-(benzyloxy)-9H-purin-9-yl)-3-(benzyloxy)-2-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1R,2S,3S,5R)-5-(2-amino-6-(benzyloxy)-9H-purin-9-yl)-3-(benzyloxy)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C32H33N5O4

    Molecular Weight

    551.65

    Catalogue Number

    AR-E01429

    Parent Drug

    ENTECAVIR
    (1S, 3S, 4R)-Entecavir

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.28

    Catalogue Number

    AR-E01428

    Parent Drug

    ENTECAVIR

    CAS Number

    1367369-79-6
    (1R,2R,3R,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1R,2R,3R,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C52H49N5O5

    Molecular Weight

    824.00

    Catalogue Number

    AR-E01427

    Parent Drug

    ENTECAVIR
    (1R,2S,3S,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1R,2S,3S,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C52H49N5O5

    Molecular Weight

    824.00

    Catalogue Number

    AR-E01426

    Parent Drug

    ENTECAVIR
    (1R,2S,3R,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1R,2S,3R,5R)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C52H49N5O5

    Molecular Weight

    824.00

    Catalogue Number

    AR-E01425

    Parent Drug

    ENTECAVIR
    (1S,2S,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Synonym

    (1S,2S,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C52H49N5O5

    Molecular Weight

    824.00

    Catalogue Number

    AR-E01424

    Parent Drug

    ENTECAVIR
    2-amino-9-((1S,3R,4S)-3-((benzyloxy)methyl)-4-(hydroxydimethylsilyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Synonym

    2-amino-9-((1S,3R,4S)-3-((benzyloxy)methyl)-4-(hydroxydimethylsilyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C21H27N5O3Si

    Molecular Weight

    425.57

    Catalogue Number

    AR-E01423

    Parent Drug

    ENTECAVIR
    ent-Entecavir-di-O-benzyl Ether

    Synonym

    2-amino-9-((1R,3S,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C26H27N5O3

    Molecular Weight

    457.54

    Catalogue Number

    AR-E01422

    Parent Drug

    ENTECAVIR

    CAS Number

    1354695-82-1
    (methoxy(4-methoxyphenyl)methylene)dibenzene

    Synonym

    (methoxy(4-methoxyphenyl)methylene)dibenzene

    Molecular Formula

    C21H20O2

    Molecular Weight

    304.39

    Catalogue Number

    AR-E01421

    Parent Drug

    ENTECAVIR

    CAS Number

    84868-56-4
    6-(benzyloxy)-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-9H-purin-2-amine

    Synonym

    6-(benzyloxy)-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-9H-purin-2-amine

    Molecular Formula

    C33H33N5O3

    Molecular Weight

    547.66

    Catalogue Number

    AR-E01420

    Parent Drug

    ENTECAVIR
    6-(benzyloxy)-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine

    Synonym

    6-(benzyloxy)-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine

    Molecular Formula

    C53H49N5O4

    Molecular Weight

    820.01

    Catalogue Number

    AR-E01419

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-80-9
    (2R,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanone

    Synonym

    (2R,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanone

    Molecular Formula

    C52H47N5O5

    Molecular Weight

    821.98

    Catalogue Number

    AR-E01418

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-79-6
    (Z)-2-cyano-N,N-diethyl-3-(4-hydroxy-3-methoxy-5-nitrophenyl)acrylamide

    Synonym

    (1S,2S,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-9H-purin-9-yl)-2-((benzyloxy)methyl)cyclopentanol

    Molecular Formula

    C52H49N5O5

    Molecular Weight

    824.00

    Catalogue Number

    AR-E01417

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-78-5
    (1R,3S,4R)-ent-Entecavir

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01416

    Parent Drug

    ENTECAVIR

    CAS Number

    188399-46-4
    4-Dimethylsilyl Entecavir

    Synonym

    2-amino-9-((1S,3R,4S)-4-(hydroxydimethylsilyl)-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C14H21N5O3Si

    Molecular Weight

    335.44

    Catalogue Number

    AR-E01415

    Parent Drug

    ENTECAVIR

    CAS Number

    870614-82-7
    Entecavir

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.28

    Catalogue Number

    AR-E01414

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-69-4
    Entecavir EP Impurity E (8-Methoxy Entecavir)

    Synonym

    2-amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-8-methoxy-3H-purin-6(9H)-one

    Molecular Formula

    C13H17N5O4

    Molecular Weight

    307.31

    Catalogue Number

    AR-E01413

    Parent Drug

    ENTECAVIR
    4-Epimer Entecavir (Entecavir EP Impurity D)

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01412

    Parent Drug

    ENTECAVIR

    CAS Number

    1367369-80-9
    Entecavir Impurity E

    Synonym

    2-amino-9-((1S,3R,4S)-4-((hydroxydimethylsilyl)oxy)-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C14H21N5O4Si

    Molecular Weight

    351.44

    Catalogue Number

    AR-E01411

    Parent Drug

    ENTECAVIR

    CAS Number

    N/A
    Entecavir EP Impurity C

    Synonym

    2-amino-8-hydroxy-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C12H15N5O4

    Molecular Weight

    293.28

    Catalogue Number

    AR-E01410

    Parent Drug

    ENTECAVIR
    Entecavir EP Impurity F

    Synonym

    2-amino-9-((1S,3R,4S)-3-((benzyloxy)methyl)-4-(dimethyl(phenyl)silyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C27H31N5O2Si

    Molecular Weight

    485.67

    Catalogue Number

    AR-E01409

    Parent Drug

    ENTECAVIR

    CAS Number

    649761-24-0
    Dibenzyl Entecavir (3',5'-Di-O-Benzyl Entecavir)

    Synonym

    2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one

    Molecular Formula

    C26H27N5O3

    Molecular Weight

    457.53

    Catalogue Number

    AR-E01408

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-81-0
    Entecavir EP Impurity B

    Synonym

    2-amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01407

    Parent Drug

    ENTECAVIR

    CAS Number

    1367369-77-4
    (1R, 3S, 4S)-Entecavir (Impurity D)

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01406

    Parent Drug

    ENTECAVIR

    CAS Number

    N/A
    Entecavir EP Impurity A (1'-epi-Entecavir)

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01405

    Parent Drug

    ENTECAVIR

    CAS Number

    1367369-78-5
    (1R, 3R, 4R)- Entecavir

    Synonym

    2-amino-9-((1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01404

    Parent Drug

    ENTECAVIR

    CAS Number

    1367369-76-3
    Entecavir Impurity A

    Synonym

    2-amino-9-((3aS,4S,6S,6aR)-3a,6-dihydroxyhexahydro-1H-cyclopenta[c]furan-4-yl)-3H-purin-6(9H)-one

    Molecular Formula

    C12H15N5O4

    Molecular Weight

    293.28

    Catalogue Number

    AR-E01403

    Parent Drug

    ENTECAVIR

    CAS Number

    N/A
    Entecavir Impurity ET-2

    Synonym

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

    Molecular Formula

    C12H15N5O3

    Molecular Weight

    277.29

    Catalogue Number

    AR-E01402

    Parent Drug

    ENTECAVIR
    Entecavir Glucuronide

    Synonym

    (2S,3S,4S,5R,6R)-6-(((1R,3S,5S)-3-(2-amino-6-oxo-3H-purin-9(6H)-yl)-5-hydroxy-2-methylenecyclopentyl)methoxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid

    Molecular Formula

    C18H23N5O9

    Molecular Weight

    453.41

    Catalogue Number

    AR-E01401

    Parent Drug

    ENTECAVIR
    Entecavir-15N-13C2

    Synonym

    2-amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one-13C2 15N

    Molecular Formula

    C1013C2H15N415NO3

    Molecular Weight

    280.26

    Catalogue Number

    AR-E01400

    Parent Drug

    ENTECAVIR
    Entecavir-d2

    Synonym

    2-amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one-D2

    Molecular Formula

    C12H13N5O3D2

    Molecular Weight

    279.30

    Catalogue Number

    AR-E01399

    Parent Drug

    ENTECAVIR

    CAS Number

    142217-69-4 (non-labelled)