Lamivudine Related Compounds & Impurities

Lamivudine is a nucleoside reverse transcriptase inhibitor (NRTI) with activity against HIV and hepatitis B virus, used in antiretroviral and anti-HBV therapy.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Lamivudine reference standards, pharmacopeial and non-pharmacopeial Lamivudine impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Lamivudine-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Lamivudine
Lamivudine
  • CAT. No.L120000
  • CAS. No.134678-17-4
  • Mol. F.C8H11N3O3S
  • Mol. W.229.05 g/mol
  • Stock Status:Instock
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Lefamulin acetate
Lefamulin acetate
  • CAT. No.L1200000
  • CAS. No.1350636-82-6
  • Mol. F.C30H49NO7S
  • Mol. W.567.78 g/mol
  • Stock Status:Custom Synthesis
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Lamivudin EP Impurity C
Lamivudin EP Impurity C
  • CAT. No.L120001
  • CAS. No.69-72-7
  • Mol. F.C7H6O3
  • Mol. W.138.12 g/mol
  • Stock Status:Under Synthesis
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Lamivudine EP Impurity E
Lamivudine EP Impurity E
  • CAT. No.L120002
  • CAS. No.71-30-7
  • Mol. F.C4H5N3O
  • Mol. W.111.10 g/mol
  • Stock Status:Limited Stock
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Lamivudine EP Impurity F
Lamivudine EP Impurity F
  • CAT. No.L120003
  • CAS. No.66-22-8
  • Mol. F.C4H4N2O2
  • Mol. W.112.09 g/mol
  • Stock Status:Instock
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Lamivudine Impurity 7
Lamivudine Impurity 7
  • CAT. No.L120004
  • CAS. No.147126-62-3
  • Mol. F.C14H24O4S
  • Mol. W.288.40 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity A
Lamivudine EP Impurity A
  • CAT. No.L120005
  • CAS. No.173829-09-9
  • Mol. F.C8H9N3O4S
  • Mol. W.243.24 g/mol
  • Stock Status:Instock
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Lamivudine Sulfoxide Impurity
Lamivudine Sulfoxide Impurity
  • CAT. No.L120006
  • CAS. No.1235712-40-9
  • Mol. F.C8H11N3O4S
  • Mol. W.245.26 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity D
Lamivudine EP Impurity D
  • CAT. No.L120007
  • CAS. No.134680-32-3
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Instock
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Lamivudine Impurity 14
Lamivudine Impurity 14
  • CAT. No.L120011
  • CAS. No.147027-10-9
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity J
Lamivudine EP Impurity J
  • CAT. No.L120012
  • CAS. No.145986-07-8
  • Mol. F.C8H10N2O4S
  • Mol. W.230.24 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity B (Racemic)
Lamivudine EP Impurity B (Racemic)
  • CAT. No.L120013
  • CAS. No.141434-39-1
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity G
Lamivudine EP Impurity G
  • CAT. No.L120016
  • CAS. No.160552-55-6
  • Mol. F.C8H11N3O4S
  • Mol. W.245.30 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity H
Lamivudine EP Impurity H
  • CAT. No.L120017
  • CAS. No.160552-54-5
  • Mol. F.C8H11N3O4S
  • Mol. W.245.26 g/mol
  • Stock Status:Instock
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Lamivudine-13C, 15N2
Lamivudine-13C, 15N2
  • CAT. No.L120018
  • CAS. No.1217746-03-6
  • Mol. F.C713CH11N15N2O3S
  • Mol. W.232.24 g/ mol
  • Stock Status:Under Synthesis
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Lamivudine EP Impurity I
Lamivudine EP Impurity I
  • CAT. No.L120020
  • CAS. No.145918-75-8
  • Mol. F.C8H11N3O4
  • Mol. W.213.20 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Dimer Impurity
Lamivudine Dimer Impurity
  • CAT. No.L120021
  • CAS. No.1904611-18-2
  • Mol. F.C17H22N6O6S2
  • Mol. W.470.53 g/mol
  • Stock Status:Instock
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2`Epi-Lamivudine
2`Epi-Lamivudine
  • CAT. No.L120022
  • CAS. No.136846-20-3
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Instock
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(+/-)-trans-Lamivudine
(+/-)-trans-Lamivudine
  • CAT. No.L120023
  • CAS. No.NA
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Uracil Derivative
Lamivudine Uracil Derivative
  • CAT. No.L120025
  • CAS. No.131086-26-5
  • Mol. F.C8H10N2O4S
  • Mol. W.230.24 g/mol
  • Stock Status:Custom Synthesis
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5-Methyl Cytosine Hydrochloride
5-Methyl Cytosine Hydrochloride
  • CAT. No.L120027
  • CAS. No.58366-64-6
  • Mol. F.C5H7N3OHCl
  • Mol. W.161.59 g/mol
  • Stock Status:Instock
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Lamivudine Formaldehyde Adduct Impurity
Lamivudine Formaldehyde Adduct Impurity
  • CAT. No.L120028
  • CAS. No.1904611-13-7
  • Mol. F.C9H13N3O4S
  • Mol. W.259.28 g/mol
  • Stock Status:Custom Synthesis
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3-Hydroxy-2-naphthoic Acid
3-Hydroxy-2-naphthoic Acid
  • CAT. No.L120029
  • CAS. No.92-70-6
  • Mol. F.C11H8O3
  • Mol. W.188.18 g/mol
  • Stock Status:Instock
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Lamivudine Impurity 5
Lamivudine Impurity 5
  • CAT. No.L120031
  • CAS. No.145511-98-4
  • Mol. F.C8H11N3O4
  • Mol. W.213.19 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Carboxylic Impurity
Lamivudine Carboxylic Impurity
  • CAT. No.L120032
  • CAS. No.NA
  • Mol. F.C8H9N3O4S
  • Mol. W.243.24 g/mol
  • Stock Status:Instock
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Mixture of diastereomer(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl(2R,5S)-5-hydroxy-1,3-oxathiolane-2-carboxylate +(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl(2S,5R)-5-hydroxy-1,3-oxathiolane-2-carboxylate
Mixture of diastereomer(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl(2R,5S)-5-hydroxy-1,3-oxathiolane-2-carboxylate +(1R,2S,5R)-2-isopropyl-5-methylcyclohexyl(2S,5R)-5-hydroxy-1,3-oxathiolane-2-carboxylate
  • CAT. No.L120033
  • CAS. No.NA
  • Mol. F.C28H48O8S2
  • Mol. W.576.81 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 1
Lamivudine Impurity 1
  • CAT. No.L120034
  • CAS. No.147126-80-5
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl(2S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate
(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl(2S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate
  • CAT. No.L120035
  • CAS. No.200396-21-0
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine EP Impurity A Enantiomer
Lamivudine EP Impurity A Enantiomer
  • CAT. No.L120036
  • CAS. No.1822826-02-7
  • Mol. F.C8H9N3O4S
  • Mol. W.243.24 g/mol
  • Stock Status:Instock
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Lamivudine Methylene Dimer
Lamivudine Methylene Dimer
  • CAT. No.L120037
  • CAS. No.NA
  • Mol. F.C17H22N6O6S2
  • Mol. W.470.52 g/mol
  • Stock Status:Instock
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(2R,5R)-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S)-5-Methyl-2-(1-methylethyl)cyclohexyl ester
(2R,5R)-5-(4-Amino-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S)-5-Methyl-2-(1-methylethyl)cyclohexyl ester
  • CAT. No.L120038
  • CAS. No.NA
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 14
Lamivudine Impurity 14
  • CAT. No.L120040
  • CAS. No.NA
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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(2S,5R)-(1S,2R,5S)-2-isopropyl-5-methylcyclohexyl,5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate
(2S,5R)-(1S,2R,5S)-2-isopropyl-5-methylcyclohexyl,5-(4-amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate
  • CAT. No.L120041
  • CAS. No.NA
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Salicylate
Lamivudine Salicylate
  • CAT. No.L120042
  • CAS. No.173522-96-8
  • Mol. F.C15H17N3O6S
  • Mol. W.367.38 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 19
Lamivudine Impurity 19
  • CAT. No.L120043
  • CAS. No.953806-67-2
  • Mol. F.C12H22O4
  • Mol. W.230.30 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 12
Lamivudine Impurity 12
  • CAT. No.L120044
  • CAS. No.1638744-50-9
  • Mol. F.C14H24O4S
  • Mol. W.288.40 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 18
Lamivudine Impurity 18
  • CAT. No.L120045
  • CAS. No.147126-72-5
  • Mol. F.C18H27N3O4S
  • Mol. W.381.49 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Sulfone
Lamivudine Sulfone
  • CAT. No.L120046
  • CAS. No.2250242-24-9
  • Mol. F.C8H11N3O5S
  • Mol. W.261.30 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 21
Lamivudine Impurity 21
  • CAT. No.L120047
  • CAS. No.288325-76-8
  • Mol. F.C14H23ClO3S
  • Mol. W.306.85 g/mol
  • Stock Status:Custom Synthesis
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Uracil Impurity 1
Uracil Impurity 1
  • CAT. No.L120048
  • CAS. No.NA
  • Mol. F.C6H11N3O2
  • Mol. W.157.17 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 24
Lamivudine Impurity 24
  • CAT. No.L120049
  • CAS. No.NA
  • Mol. F.C4H8O3S
  • Mol. W.136.17 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 28
Lamivudine Impurity 28
  • CAT. No.L120051
  • CAS. No.NA
  • Mol. F.C12H13N3O6S
  • Mol. W.327.31 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 29
Lamivudine Impurity 29
  • CAT. No.L120052
  • CAS. No.NA
  • Mol. F.C12H13N3O6S
  • Mol. W.327.31 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine EP Impurity B
Lamivudine EP Impurity B
  • CAT. No.L120053
  • CAS. No.131086-22-1
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Instock
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Lamivudine Dimer Impurity 1
Lamivudine Dimer Impurity 1
  • CAT. No.L120055
  • CAS. No.NA
  • Mol. F.C17H22N6O6S2
  • Mol. W.470.52 g/mol
  • Stock Status:Instock
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Lamivudine EP Impurity H Trifluoroacetate
Lamivudine EP Impurity H Trifluoroacetate
  • CAT. No.L120056
  • CAS. No.NA
  • Mol. F.C8H11N3O4S.C2HF3O2
  • Mol. W.359.28 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 3
Lamivudine Impurity 3
  • CAT. No.L120057
  • CAS. No.NA
  • Mol. F.C14H23ClO3S
  • Mol. W.306.85 g/mol
  • Stock Status:Custom Synthesis
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5`-Epi Lamivudine
5`-Epi Lamivudine
  • CAT. No.L120058
  • CAS. No.139757-68-9
  • Mol. F.C8H11N3O3S
  • Mol. W.229.26 g/mol
  • Stock Status:Limited Stock
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Lamivudine Impurity 4
Lamivudine Impurity 4
  • CAT. No.L120059
  • CAS. No.1904611-19-3
  • Mol. F.C23H33N8O10PS
  • Mol. W.644.59 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine Impurity 6
Lamivudine Impurity 6
  • CAT. No.L120060
  • CAS. No.NA
  • Mol. F.3(C24H33N9O9S3)
  • Mol. W.687.77 g/mol
  • Stock Status:Instock
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Isotope Labelled Compounds

Lamivudine 13C15N2D2
Lamivudine 13C15N2D2
  • CAT. No.L120024
  • CAS. No.NA
  • Mol. F.C713CH9D2N15N2O3S
  • Mol. W.234.20 g/mol
  • Stock Status:Instock
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Lamivudine Acid-13C,15N2
Lamivudine Acid-13C,15N2
  • CAT. No.L120026
  • CAS. No.1391052-30-4
  • Mol. F.C713CH9N15N2O4S
  • Mol. W.246.22 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine-13C1,D2
Lamivudine-13C1,D2
  • CAT. No.L120039
  • CAS. No.NA
  • Mol. F.C713CH9D2N3O3S
  • Mol. W.232.26 g/mol
  • Stock Status:Custom Synthesis
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Uracil-1,3 D2
Uracil-1,3 D2
  • CAT. No.L120050
  • CAS. No.20666-60-8
  • Mol. F.C4H2D2N2O2
  • Mol. W.114.10 g/mol
  • Stock Status:Custom Synthesis
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Lamivudine 13C D2
Lamivudine 13C D2
  • CAT. No.L120054
  • CAS. No.NA
  • Mol. F.C713CH9D2N3O3S
  • Mol. W.232.26 g/mol
  • Stock Status:Custom Synthesis
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