entecavir monohydrate and its Impurities

It is a derivative of Etofylline and a Entecavir Monohydrate analog which is also known in the name of nucleoside. It is an antiviral drug used in the treatment of HIV/AIDS.. Reference standards of Entecavir Monohydrate API, and its pharmacopeial, non pharmacopieal impurities, and stable isotopes are listed below

Displaying 24 results for entecavir monohydrate Impurities
PA 05 57000

Entecavir Monohydrate - API

Entecavir Monohydrate


  • Catalogue No.:PA 05 57000

  • CAS :

    209216-23-9

  • Molecular Formula : C12H17N5O4

  • Molecular Weight : 295.29

PA 05 57020

Entecavir Monohydrate - Impurity B

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


  • Catalogue No.:PA 05 57020

  • CAS :

    1367369-77-4

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA 05 57040

Entecavir Monohydrate - Impurity D

4'-epi-Entecavir


  • Catalogue No.:PA 05 57040

  • CAS :

    1367369-80-9

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA 05 57050

Entecavir Monohydrate - Impurity E

8-Methoxy Entecavir


  • Catalogue No.:PA 05 57050

  • CAS :

    NA

  • Molecular Formula : C13H17N5O4

  • Molecular Weight : 307.31

PA 05 57060

Entecavir Monohydrate - Impurity F

6-O-Benzyl-4-dehydroxy-4-dimethylphenylsilyl Entecavir


  • Catalogue No.:PA 05 57060

  • CAS :

    649761-24-0

  • Molecular Formula : C27H31N5O2Si

  • Molecular Weight : 485.65

PA 05 57510

ent-Entecavir

ent-Entecavir


  • Catalogue No.:PA 05 57510

  • CAS :

    188399-46-4

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA 05 57520

2-Hydroxy-2,3-tetrahydrofuranyl Entecavir

2-Hydroxy-2,3-tetrahydrofuranyl Entecavir


  • Catalogue No.:PA 05 57520

  • CAS :

    NA

  • Molecular Formula : C12H15N5O4

  • Molecular Weight : 293.28

PA 05 57530

Entecavir Monohydrate - Impurity A

1'-epi-Entecavir


  • Catalogue No.:PA 05 57530

  • CAS :

    1367369-78-5

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA 05 57540

3'-epi-Entecavir

3'-epi-Entecavir


  • Catalogue No.:PA 05 57540

  • CAS :

    1367369-77-4

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA 05 57550

Entecavir Monohydrate - Impurity C

8-Hydroxy Entecavir


  • Catalogue No.:PA 05 57550

  • CAS :

    NA

  • Molecular Formula : C12H15N5O4

  • Molecular Weight : 293.28

PA 05 57560

4-Dimethylsilyl Entecavir

4-Dimethylsilyl Entecavir


  • Catalogue No.:PA 05 57560

  • CAS :

    870614-82-7

  • Molecular Formula : C14H21N5O3Si

  • Molecular Weight : 335.43

PA 05 57570

Cyclopentanemethanol, 5-[2-amino-6-(phenylmethoxy)-9H-purin-9-yl]-3-(dimethylphenylsilyl)-1-hydroxy-2-[(phenylmethoxy)methyl]-, (1S,2S,3S,5S)-

Cyclopentanemethanol, 5-[2-amino-6-(phenylmethoxy)-9H-purin-9-yl]-3-(dimethylphenylsilyl)-1-hydroxy-2-[(phenylmethoxy)methyl]-, (1S,2S,3S,5S)-


  • Catalogue No.:PA 05 57570

  • CAS :

    NA

  • Molecular Formula : C34H39N5O4Si

  • Molecular Weight : 609.79

PA 05 57580

O6-Benzylguanine

O6-Benzylguanine


  • Catalogue No.:PA 05 57580

  • CAS :

    19916-73-5

  • Molecular Formula : C12H11N5O

  • Molecular Weight : 241.25

PA 05 57590

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

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


  • Catalogue No.:PA 05 57590

  • CAS :

    1367369-76-3

  • Molecular Formula : C12H15N5O3

  • Molecular Weight : 277.28

PA EPY0001800

Entecavir monohydrate (Y0001800)


  • Catalogue No.:PA EPY0001800

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA EPY0001802

Entecavir impurity F (Y0001802)


  • Catalogue No.:PA EPY0001802

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA EPY0001801

Entecavir for system suitability (Y0001801)


  • Catalogue No.:PA EPY0001801

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA USP1235966

Entecavir Monohydrate (1235966)


  • Catalogue No.:PA USP1235966

  • CAS :

    209216-23-9

  • Molecular Formula :

  • Molecular Weight : NA

PA USP1235977

Entecavir Related Compound A (9-[(1S,3R,4S)-4-Dimethylphenylsilyl-3-(benzyloxymethyl)-2-methylenecy (1235977)


  • Catalogue No.:PA USP1235977

  • CAS :

    649761-24-0

  • Molecular Formula :

  • Molecular Weight : NA

PA USP1235988

Entecavir System Suitability Mixture (A mixture containing entecavir 1-epimer (0.1%), entecavir (99 (1235988)


  • Catalogue No.:PA USP1235988

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA 05 57610

2-Amino-1,9-dihydro-9-[(1R,3R,4R)-2-methylene-4-(phenylmethoxy)-3-[(phenylmethoxy)methyl]cyclopentyl]-6H-purin-6-one

2-Amino-1,9-dihydro-9-[(1R,3R,4R)-2-methylene-4-(phenylmethoxy)-3-[(phenylmethoxy)methyl]cyclopentyl]-6H-purin-6-one


  • Catalogue No.:PA 05 57610

  • CAS :

    1354695-84-3

  • Molecular Formula : C26H27N5O3

  • Molecular Weight : 457.52

PA 05 57600

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

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


  • Catalogue No.:PA 05 57600

  • CAS :

    NA

  • Molecular Formula : C12H15N5O4

  • Molecular Weight : 293.28

PA 05 57620

3',5'-di-O-Benzyl Entecavir

3',5'-di-O-Benzyl Entecavir


  • Catalogue No.:PA 05 57620

  • CAS :

    142217-81-0

  • Molecular Formula : C26H27N5O3

  • Molecular Weight : 457.53

PA 05 57630

ent-Entecavir-di-o-benzyl Ether

ent-Entecavir-di-o-benzyl Ether


  • Catalogue No.:PA 05 57630

  • CAS :

    1354695-82-1

  • Molecular Formula : C26H27N5O3

  • Molecular Weight : 457.53