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| Product | Description | |
|---|---|---|
| Entecavir Impurity 1 | Cas No. 142217-78-5. |  |
| Entecavir Impurity 16 | Entecavir Impurity 16. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1661867-19-1. Molecular formula: C52H47N5O3. Mole weight: 789.98. Catalog: APB1661867191. |  |
| Entecavir Impurity 19 | Entecavir Impurity 19. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1030919-51-7. Molecular formula: C19H21N5O3. Mole weight: 367.41. Catalog: APB1030919517. | |
| Entecavir Impurity 2 | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(benzyloxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanone. Grades: > 95%. CAS No. 142217-79-6. Molecular formula: C52H47N5O5. Mole weight: 821.98. | |
| Entecavir Impurity 3 | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 6-(Benzyloxy)-9-((1S,3R,3S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine. Grades: > 95%. CAS No. 142217-80-9. Molecular formula: C53H49N5O4. Mole weight: 820.01. | |
| Entecavir Impurity 31 | Entecavir Impurity 31. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1415118-53-4. Molecular formula: C15H19N5O5. Mole weight: 349.35. Catalog: APB1415118534. | |
| Entecavir Impurity 33 | Entecavir Impurity 33. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1415118-52-3. Molecular formula: C15H19N5O5. Mole weight: 349.35. Catalog: APB1415118523. | |
| Entecavir Impurity 4 | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 6-(benzyloxy)-9-((1R,3R,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-9H-purin-2-amine. Grades: > 95%. Molecular formula: C33H33N5O3. Mole weight: 547.66. | |
| Entecavir Impurity 43 | Entecavir Impurity 43. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-Amino-6-chloropurin; 6-chloro-9H-purin-2-amine. CAS No. 10310-21-1. Molecular formula: C5H4ClN5. Mole weight: 169.57. Catalog: APB10310211. | |
| Entecavir Impurity 5 | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: methoxy-(p-methoxytriphenyl)methane; 4.α-Dimethoxy-tritan; methoxy-(4-methoxy-phenyl)-diphenyl-methane; Methoxy-(4-methoxy-phenyl)-diphenyl-methan; Methyl-(4-methoxy-trityl)-aether. Grades: > 95%. CAS No. 84868-56-4. Molecular formula: C21H20O2. Mole weight: 304.39. | |
| Entecavir Impurity 9 | Entecavir Impurity 9. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1333204-93-5. Molecular formula: C12H15N5O3. Mole weight: 277.28. Catalog: APB1333204935. | |
| Entecavir Impurity A | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 2-amino-9-((3aS,4R,6S,6aR)-3a,6-dihydroxyhexahydro-1H-cyclopenta[c]furan-4-yl)-3H-purin-6(9H)-one. Grades: > 95%. CAS No. 1984788-96-6. Molecular formula: C12H15N5O4. Mole weight: 293.28. | |
| Entecavir Impurity E | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 2-amino-9-((1R,3R,4S)-3-(hydroxymethyl)-2-methylene-4-((trimethylsilyl)oxy)cyclopentyl)-3H-purin-6(9H)-one. Grades: > 95%. Molecular formula: C14H21N5O4Si. Mole weight: 351.44. | |
| Entecavir Impurity ET-2 | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 2-amino-9-((1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one. Grades: > 95%. Molecular formula: C12H15N5O3. Mole weight: 277.29. | |
| (1R,3R,4R)-Entecavir | (1R,3R,4R)-Entecavir. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-, [1R-(1?,3?,4?)]-2-Amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one, (1R,3R,4R)-Entecavir, (1'R,3'R,4'R)-Entecavir, 2-Amino-1,9-dihydro-9-[(1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one. CAS No. 1367369-76-3. IUPAC Name: 2-amino-9-[(1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one. Molecular formula: C12H15N5O3. Mole weight: 277.28. Catalog: APS1367369763. SMILES: NC1=Nc2c(ncn2[C@@H]3C[C@@H](O)[C@@H](CO)C3=C)C(=O)N1. Format: Neat. | |
| 2-amino-9-((1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one | 2-amino-9-((1R,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one is an impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 3-Epi-Entecavir; Entecavir 3-epimer; UNII-FD1LY3K97F; FD1LY3K97F; 2-Amino-9-[(1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one; 2-Amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one; 9-((1S,3S,4S)-4-Hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)guanine; 2-Amino-1,9-dihydro-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-6H-purin-6-one; 6H-Purin-6-one, 2-amino-1,9-dihydro-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-; Entecavir 3-epimer [USP]; SCHEMBL2670719; AMY38952; ENTECAVIR 3-EPIMER [USP IMPURITY]; ENTECAVIR MONOHYDRATE IMPURITY B [EP IMPURITY]; 1333204-93-5; 2-Amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one; Rel-2-amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3,9-dihydro-6H-purin-6-one. CAS No. 1333204-93-5. Molecular formula: C12H15N5O3. Mole weight: 277.28. | |
| 2-Amino-9-((1S,3S,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one | 2-Amino-9-((1S,3S,4S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one is an impurity of Entecavir (E558900) which is an oral antiviral drug used in the treatment of hepatitis B infection. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 500ug, 2.5mg. Molecular Formula: C26H27N5O3, Molecular Weight: 457.52. US Biological Life Sciences. |  Worldwide |
| 2-Hydroxy-2,3-tetrahydrofuranyl Entecavir | 2-Hydroxy-2,3-tetrahydrofuranyl Entecavir is an impurity of Entecavir. Group: Biochemicals. Alternative Names: 2-Amino-9-((3aS,4S,6S)-3a,6-dihydroxyhexahydro-1H-cyclopenta[c]furan-4-yl)-1H-purin-6(9H)-one. Grades: Highly Purified. Pack Sizes: 2.5mg. US Biological Life Sciences. | Worldwide |
| 2-Hydroxy-2,3-tetrahydrofuranyl Entecavir (Mixture of Diastereomers) | 2-Hydroxy-2,3-tetrahydrofuranyl Entecavir is an Entecavir impurity. Synonyms: 2-Amino-9-((3aS,4S,6S)-3a,6-dihydroxyhexahydro-1H-cyclopenta[c]furan-4-yl)-1H-purin-6(9H)-one. Grades: 99%. Molecular formula: C12H15N5O4. Mole weight: 293.28. | |
| 3'-epi-Entecavir | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 2-amino-9-((1R,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-3H-purin-6(9H)-one. Grades: > 95%. Molecular formula: C12H15N5O3. Mole weight: 277.29. | |
| 3-Epi-Entecavir | 3-Epi-Entecavir is an impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: Entecavir EP Impurity B; 2-amino-9-[(1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3H-purin-6-one. CAS No. 1367369-77-4. Molecular formula: C12H15N5O3. Mole weight: 277.284. | |
| 4-Dehydroxy-4-dimethylphenylsilyl Entecavir | 4-Dehydroxy-4-dimethylphenylsilyl Entecavir is an impurity of Entecavir. Synonyms: 2-Amino-9-[(1S,3R,4S)-4-(dimethylphenylsilyl)-3-(hydroxymethyl)-2-methylenecyclopentyl]-1,9-dihydro-6H-purin-6-one. CAS No. 701278-07-1. Molecular formula: C20H25N5O2Si. Mole weight: 395.53. | |
| 4-epi-Entecavir | 4-epi-Entecavir is an epimeric impurity of the antiviral drug Entecavir. Group: Biochemicals. Alternative Names: 2-Amino-1,9-dihydro-9-[(1S,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one; Entecavir Isomer 2; (1S,3S,4S)-Entecavir Isomer. Grades: Highly Purified. Pack Sizes: 2.5mg. US Biological Life Sciences. | Worldwide |
| 4-Epimer Entecavir | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: Entecavir EP Impurity D; (1S,3R,4R)-Entecavir ; 2-Amino-9-[(1S,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidene cyclopentyl]-6,9-dihydro-3H-purin-6-one. Grades: > 95%. CAS No. 1367369-80-9. Molecular formula: C12H15N5O3. Mole weight: 277.29. | |
| 8-Methoxy Entecavir | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: 2-Amino-9-((1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-8-methoxy-1H-purin-6(9H)-one; Entecavir EP impurity E. Grades: > 95%. Molecular formula: C13H17N5O4. Mole weight: 307.31. | |
| 9- ( (1S, 3R, 4R) -4-Hydroxy-3- ( ( (4-methoxyphenyl) diphenylmethoxy) methyl) -2-methylenecyclopentyl) -2- ( ( (4-methoxyphenyl) diphenylmethyl) amino) -1H-purin-6 (9H) -one | 9- ( (1S, 3R, 4R) -4-Hydroxy-3- ( ( (4-methoxyphenyl) diphenylmethoxy) methyl) -2-methylenecyclopentyl) -2- ( ( (4-methoxyphenyl) diphenylmethyl) amino) -1H-purin-6 (9H) -one is a Monomethoxytrityl protected derivative of 4-epi-Entecavir (E558930), an epimeric impurity of the antiviral drug Entecavir (E558900). Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg. US Biological Life Sciences. | Worldwide |
| 9- ( (1S, 3R, 4S) -4-Hydroxy-3- ( ( (4-methoxyphenyl) diphenylmethoxy) methyl) -2-methylenecyclopentyl) -2- ( ( (4-methoxyphenyl) diphenylmethyl) amino) -1H-purin-6 (9H) -one | 9- ( (1S, 3R, 4S) -4-Hydroxy-3- ( ( (4-methoxyphenyl) diphenylmethoxy) methyl) -2-methylenecyclopentyl) -2- ( ( (4-methoxyphenyl) diphenylmethyl) amino) -1H-purin-6 (9H) -one is a Monomethoxytrityl protected intermediate of 4-epi-Entecavir (E558930), an epimeric impurity of the antiviral drug Entecavir (E558900). Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| Entecavir-13C2,15N | Entecavir-13C2,15N. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1329796-53-3. Molecular formula: C1013C2H15N415NO3. Mole weight: 280.26. Catalog: APB1329796533. | |
| Entecavir Related Compound A | An impurity of Entecavir. Entecavir is a reverse transcriptase inhibitor. It prevents the hepatitis B virus from multiplying and reduces the amount of virus in the body. Synonyms: Entecavir impurity F; 2-Amino-9-[(1S,3R,4S)-4-(dimethylphenylsilyl)-2-methylene-3-[(phenylmethoxy)methyl]cyclopentyl]-1,9-dihydro-6H-purin-6-one. Grades: > 95%. CAS No. 649761-24-0. Molecular formula: C27H31N5O2Si. Mole weight: 485.67. | |
| Entecavir (R,S,S)-Isomer | Entecavir (R,S,S)-Isomer. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1333204-94-6. Molecular formula: C12H15N5O3. Mole weight: 277.28. Catalog: APB1333204946. | |
| ent-Entecavir | ent-Entecavir is an enantiomeric impurity of the antiviral drug Entecavir. Group: Biochemicals. Alternative Names: 2-Amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-Purin-6-one; [1R-(1α,3α,4 β)]-2-Amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one. Grades: Highly Purified. CAS No. 188399-46-4. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| ent-Entecavir | ent-Entecavir. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: [1R-(1?,3?,4?)]-2-Amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one,2-Amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-Purin-6-one. CAS No. 188399-46-4. Molecular formula: C12H15N5O3. Mole weight: 277.28. Catalog: APS188399464. Format: Neat. | |
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