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| Product | Description | |
|---|---|---|
| Lamivudine EP Impurity B | Lamivudine EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 141434-39-1. Molecular formula: C8H11N3O3S. Mole weight: 229.25. Catalog: APB141434391. |  |
| (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (2R,5S)-5-hydroxy-1,3-oxathiolane-2-carboxylate | (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (2R,5S)-5-hydroxy-1,3-oxathiolane-2-carboxylate is an impurity of Lamivudine, which is a potent nucleoside reverse transcriptase inhibitor and antiviral agent used to treat chronic hepatitis B. Synonyms: 1,3-Oxathiolane-2-carboxylic acid, 5-hydroxy-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2R,5S)-; Lamivudine Impurity 5; (2R,5R)-5-Hydroxy-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester. Grade: ≥95%. CAS No. 147027-08-5. Molecular formula: C14H24O4S. Mole weight: 288.40. |  |
| (1R,2S,5R)-Menthol-5R-hydroxy-[1,3]-oxathiolane-2R-carboxylate | (1R,2S,5R)-Menthol-5R-hydroxy-[1,3]-oxathiolane-2R-carboxylate is an intermediate of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. Synonyms: (2S,5R)-5-Hydroxy[1,3]oxathiolane-2-carboxylic Acid L-Menthol Ester; (1R,2S,5R)-Menthol-5R-hydroxy Acid 2-Isopropyl-5-methyl-cyclohexyl Ester; HME; Lamivudine Impurity 8; (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (2R,5R)-5-hydroxy-1,3-oxathiolane-2-carboxylate; 1,3-Oxathiolane-2-carboxylic acid, 5-hydroxy-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2R,5R)-. Grade: 98%. CAS No. 147126-62-3. Molecular formula: C14H24O4S. Mole weight: 288.40. | |
| (1R,2S,5S)-2-Isopropyl-5-methylcyclohexyl (2S,5R)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylate | (1R,2S,5S)-2-Isopropyl-5-methylcyclohexyl (2S,5R)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylate is an impurity of Lamivudine, which is a potent nucleoside reverse transcriptase inhibitor and antiviral agent used to treat chronic hepatitis B. Synonyms: 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, 5-methyl-2-(1-methylethyl)cyclohexyl ester, [1R-[1α(2S*,5R*),2β,5β]]-; 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, (1R,2S,5S)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2S,5R)-. Grade: ≥95%. CAS No. 147126-73-6. Molecular formula: C18H27N3O4S. Mole weight: 381.49. | |
| 2',3'-Dideoxy-3'-thiacytidine | An enantiomer of Lamivudine, which is a potent nucleoside analog reverse transcriptase inhibitor, used for the treatment of chronic HBV and HIV/AIDS. Synonyms: Lamivudine Impurity D (Lamivudine Enantiomer); 4-Amino-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one; 4-Amino-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone; (2S-cis)-4-Amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone; (+)-BCH 189; Lamivudine EP Impurity D; 2'-Deoxy-3'-thiacytidine; 3TC; NSC 620753; cis(+)-2-Hydroxymethyl-5-(cytosin-1-yl)-1,3-oxathiolane; ent-Lamivudine; (+)-cis-Lamivudine. Grade: 95%. CAS No. 134680-32-3. Molecular formula: C8H11N3O3S. Mole weight: 229.26. | |
| (2R,5R)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-((3-Fluoro-6-hydroxypyridin-2-yl)amino)-1,3-oxathiolane-2-carboxylate | (2R,5R)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-((3-Fluoro-6-hydroxypyridin-2-yl)amino)-1,3-oxathiolane-2-carboxylate is an impurity of Emtricitabine (E525000), a reverse transcriptase inhibitor. It is an effective antiviral agent against HIV, HBV, and other viruses replicating in a similar manner. A nucleoside analog structurally related to Lamivudine (L172500). Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg, 25mg. Molecular Formula: C19H27FN2O4S, Molecular Weight: 398.49. US Biological Life Sciences. |  Worldwide |
| (2R,5S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester | (2R,5S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester is an intermediate in the synthesis of (2R-cis)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione which is an impurity of Lamivudine (L172500). (2R-cis)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione is also being further studied to determine its potential as an anti-HIV agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 389128-28-3. Pack Sizes: 25mg, 100mg. Molecular Formula: C18H26N2O5S, Molecular Weight: 382.47. US Biological Life Sciences. | Worldwide |
| (2R,5S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester | (2R,5S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester is an intermediate in the synthesis of Lamivudine, which is a potent nucleoside analog reverse transcriptase inhibitor, used for the treatment of chronic HBV and HIV/AIDS. Synonyms: Lamivudine Impurity 27; 1,3-Oxathiolane-2-carboxylic acid, 5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2R,5S)-. Grade: ≥95%. CAS No. 389128-28-3. Molecular formula: C18H26N2O5S. Mole weight: 382.47. | |
| (2R,5S)-5-(4-Amino-5-fluoro-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester | (2R,5S)-5-(4-Amino-5-fluoro-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl Ester is an impurity of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. Synonyms: Emtricitabine Menthyl Ester; Emtricitabine Impurity 14. Grade: 98%. CAS No. 764659-72-5. Molecular formula: C18H26FN3O4S. Mole weight: 399.48. | |
| (2R-cis)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione | (2R-cis)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione (Lamivudine EP Impurity J) is an impurity of Lamivudine (L172500). (2R-cis)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione is also being further studied to determine its potential as an anti-HIV agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 145986-07-8. Pack Sizes: 25mg, 100mg. Molecular Formula: C8H10N2O4S. US Biological Life Sciences. | Worldwide |
| (2S,5S)-(1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl 5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-Oxathiolane-2-carboxylate | (2S,5S)-(1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl 5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-Oxathiolane-2-carboxylate is an intermediate and impurity of Lamivudine, which is a potent nucleoside reverse transcriptase inhibitor and antiviral agent used to treat chronic hepatitis B. Synonyms: (2S,5S)-(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl 5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate; Lamivudine Impurity 3; (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (2S,5S)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylate; 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2S,5S)-. Molecular formula: C18H27N3O4S. Mole weight: 381.49. | |
| (2S-cis)-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione | 5-Fluoro-3'-thia-2',3'-dideoxyuridine is an impurity of ent-Emtricitabine (E525005), a reverse transcriptase inhibitor and an effective antiviral agent against HIV, HBV, and other viruses replicating in a similar manner. In addition, ent-Emtricitabine (E525005) is a nucleoside analog structurally related to Lamivudine (L172500). Group: Biochemicals. Grades: Highly Purified. CAS No. 145281-92-1. Pack Sizes: 1mg, 5mg. Molecular Formula: C8H9FN2O4S, Molecular Weight: 248.23. US Biological Life Sciences. | Worldwide |
| (5S)-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid | (5S)-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid is an impurity of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. Synonyms: 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, (5S)-; (5S)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylic acid. Grade: ≥95%. CAS No. 2382818-80-4. Molecular formula: C8H9N3O4S. Mole weight: 243.24. | |
| cis-1-[2-[(Acetyloxy)methyl]-1,3-oxathiolan-5-yl]-5-fluoro-2,4(1H,3H)-pyrimidinedione | cis-1-[2-[(Acetyloxy)methyl]-1,3-oxathiolan-5-yl]-5-fluoro-2,4(1H,3H)-pyrimidinedione is an impurity of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. CAS No. 144963-94-0. Molecular formula: C10H11FN2O5S. Mole weight: 290.27. | |
| Cytidine(CME) | (2R,5S)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate is an impurity of Lamivudine, which is a potent nucleoside reverse transcriptase inhibitor and antiviral agent used to treat chronic hepatitis B. Synonyms: 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester, (2R,5S)-; (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl (2R,5S)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylate; 1,3-Oxathiolane-2-carboxylic acid, 5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-, 5-methyl-2-(1-methylethyl)cyclohexyl ester, [1R-[1α(2R*,5S*),2β,5α]]-; (2R,5S)-5-(4-Amino-2-oxo-1,2-dihydro-1-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-2-isopropyl-5-methylcyclohexyl ester; (2R,5S)-L-Menthol-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylate; Lamivudine Impurity 17. Grade: ≥95%. CAS No. 147027-10-9. Molecular formula: C18H27N3O4S. Mole weight: 381.49. | |
| Cytosine | Cytosine is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached (anamine group at position 4 and a keto group at position 2). The nucleoside of cytosine is cytidine. In Watson-Crick base pairing, it forms three hydrogen bonds with guanine. Synonyms: Cytarabine Impurity C; 4-Aminopyrimidin-2(1H)-one; 6-Amino-2(1H)-pyrimidinone; 4-Amino-1H-pyrimidin-2-one; 4-Amino-2(1H)-pyrimidinone; 4-Amino-2-hydroxypyrimidine; 4-Aminouracil; Gemcitabine EP Impurity A; Lamivudine EP Impurity E; 2-Hydroxy-4-pyrimidinamine; 4-Amino-2-oxo-1,2-dihydropyrimidine; Cytosines; Cytosinimine; NSC 27787; Cytarabine EP Impurity C; Gemcitabine hydrochloride EP Impurity A. Grade: 98%. CAS No. 71-30-7. Molecular formula: C4H5N3O. Mole weight: 111.10. | |
| Emtricitabine Glycosamine | Emtricitabine Glycosamine is an impurity of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. Synonyms: EMTRICITABINE GLYCOSAMINE PRODUCT; Emtricitabine Lactose Adduct; Emtricitabine D-Lactose Adduct. Grade: ≥95%. Molecular formula: C20H30FN3O13S. Mole weight: 571.53. | |
| Emtricitabine Menthyl Ester | Emtricitabine Menthyl Ester is an impurity of Lamivudine, a potent nucleoside reverse transcriptase inhibitor and antiviral agent. Lamivudine has also been used for treatment of chronic hepatitis B. Synonyms: [1R-[1α(2S*,5R*),2β,5α]]-5-(4-Amino-5-fluoro-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid 5-Methyl-2-(1-methylethyl)cyclohexyl Ester. CAS No. 147126-75-8. Molecular formula: C18H26FN3O4S. Mole weight: 399.48. | |
| Hydroxy Methyl Lamivudine | An impurity of Lamivudine, which is a potent nucleoside analog reverse transcriptase inhibitor, used for treatment of chronic HBV and HIV/AIDS. Synonyms: 4-[(Hydroxymethyl)amino]-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone; Lamivudine Impurity 35; 1-((2R,5S)-2-(Hydroxymethyl)-1,3-oxathiolan-5-yl)-4-((hydroxymethyl)amino)pyrimidin-2(1H)-one; Lamivudine Formaldehyde Adduct Impurity. Grade: ≥95%. CAS No. 1904611-13-7. Molecular formula: C9H13N3O4S. Mole weight: 259.28. | |
| Lamivudine Acid | Lamivudine Acid is an impurity of Lamivudine. Impurity A per European Pharmacopoeia. Group: Biochemicals. Alternative Names: (2R-cis)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid. Grades: Highly Purified. CAS No. 173829-09-9. Pack Sizes: 25mg. US Biological Life Sciences. | Worldwide |
| Lamivudine Acid | Lamivudine Acid. Uses: For analytical and research use. Group: Impurity standards. CAS No. 173829-09-9. Molecular formula: C8H9N3O4S. Mole weight: 243.24. Catalog: APS173829099. Format: Neat. | |
| rac-cis-Lamivudine Acid (1R,2S,5R)-5-Methyl-2-isopropylcyclohexyl Ester | A protected impurity of the anti-viral Lamivudine. Group: Biochemicals. Alternative Names: cis-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid L-Menthol Ester. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| rac Lamivudine Acid | An impurity of the anti-viral Lamivudine. Group: Biochemicals. Alternative Names: cis-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic Acid. Grades: Highly Purified. CAS No. 173602-25-0. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| Salicylic acid | Salicylic acid is a natural product extract from Willow bark, well known as an antiinflammatory inhibitor of cyclooxygenase activity. It is widely used in organic synthesis and functions as a plant hormone and is known for its ability to ease aches and pains and reduce fevers. It is derived from the metabolism of salicin. It and its derivatives are used as constituents of some rubefacient products. In cosmetics, it has the effect of oil control, exfoliation, removing pimples, narrowing pores, and lightening marks. Uses: Anti-infective agents; antifungal agents; keratolytic agents. Synonyms: Lamivudine Impurity C; 2-Carboxyphenol; 2-Hydroxybenzenecarboxylic acid; Advanced Pain Relief Callus Removers; Advanced Pain Relief Corn Removers; Clear away Wart Remover; Compound W; Dr.Scholl's Callus Removers; Dr. Scholl's Corn Removers; Dr. Scholl's Wart Remover Kit; Duofil Wart Remover; Duoplant; FM 110602; Freezone; Ionil; Ionil Plus; K 537; K 557; NSC 180; o-Carboxyphenol; o-Hydroxybenzoic acid; Phenol-2-carboxylic acid; Psoriacid-S-Stift; Retarder W; Rutranex; Salicylic acid; Salicylic acid collodion; Salicylic Acid Soap; Saligel; Salonil; Salvona Nanosal; Stri-Dex; Trans-Ver-Sal; Verrugon; Lamivudine EP Impurity C. Grade: >95%. CAS No. 69-72-7. Molecular formula: C7H6O3. Mole weight: 138.12. | |
| Uracil | Uracil is one of the four nucleobases in the nucleic acid of RNA, and can be used for drug delivery and as a pharmaceutical. Synonyms: Cytarabine Impurity D; Pyrimidin-2,4(1H,3H)-dione; 2,4(1H,3H)-Pyrimidinedione; 2,4-Dioxopyrimidine; 2,4-Pyrimidinedione; Pirod; Pyrod; Fluorouracil Impurity C; 1,2,3,4-Tetrahydropyrimidine-2,4-dione; 2,4-Dihydroxypyrimidine; 2,4-Pyrimidinediol; 4-Hydroxyuracil; Hybar X; NSC 3970; Lamivudine EP Impurity F; Fluorouracil EP Impurity C; Cytarabine EP Impurity D. Grade: >98%. CAS No. 66-22-8. Molecular formula: C4H4N2O2. Mole weight: 112.09. | |
| Zidovudine | United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standardsbritish pharmacopoeiaeuropean pharmacopoeia (ph. eur.)pharmacopoeial standards. Alternative Names: Zidovudine, BP Zidovudine and Lamivudine Impurity Standard, 1-(3-Azido-2,3-dideoxy-?-d-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione, Zidovudine (GR 63367X). | |
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