Lamivudine EP Impurity G CAS 160552-55-6
| CAS No. | 160552-55-6 |
| Molecular Formula | C8H11N3O4S |
| Molecular Weight | 245.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lamivudine EP Impurity G (CAS 160552-55-6) is a certified pharmaceutical impurity reference standard with the molecular formula C8H11N3O4S and a molecular weight of 245.26 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Lamivudine EP Impurity G is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 245.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Lamivudine EP Impurity G under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H11N3O4S |
| Molecular Weight | 245.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Lamivudine Standards
- Lamivudine Impurity 1 (CAS 1235712-40-9)
- Lamivudine Impurity 18 (CAS CATO-C4X-119418)
- Lamivudine EP Impurity H (CAS 160552-54-5)
- Lamivudine Impurity 43 (CAS CATO-C4X-119443)
- Lamivudine Impurity 44 (CAS CATO-C4X-119444)
- Lamivudine Acid-13C,15N2 (CAS 1391052-30-4)
- Lamivudine EP impurity A (CAS 173602-25-0)
- Lamivudine EP Impurity A(2R,5S)Monomer (CAS 173829-09-9)
Recommended Standards
- Ro 106-9920 (CAS 62645-28-7)
- N-Methyl-4-(methylamino)-3-nitrobenzenesulfonamide (CAS 68502-28-3)
- Emtricitabine Impurity 35 (CAS 1238210-14-4)
- N,N-Dimethyl-N′-(3-nitrophenyl)sulfamide (CAS 82936-48-9)
- Aztreonam impurity 65 (CAS CATO-C4X-152265)
- Ketoprofen EP Impurity E (CAS 188252-75-7)
- Apalutamide Impurity 101 (CAS CATO-C4X-2749101)
- Trans-4-cyano-3-fluorophenyl 4-pentylcyclohexanecarboxylate (CAS 90525-59-0)
- (S)-2-(1-aminoethyl)thiazole-5-carboxylic acid (CAS 2272778-58-0)
- Elvitegravir-d6 (Major) (CAS CATO-C4X-21821)
- 2-Isopropyl-4-methoxybenzoic acid (CAS 161480-96-2)
- 4-Phenethyl-2-((4-(trifluoromethyl)phenyl)amino)benzoic acid (CAS 910243-05-9)
- [4-Fluoro-2-(methoxymethoxy)phenyl]boronic acid (CAS 335254-87-0)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com