Lamivudine Impurity 1 CAS 1235712-40-9
| CAS No. | 1235712-40-9 |
| Molecular Formula | C8H11N3O4S |
| Molecular Weight | 245.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Lamivudine Impurity 1 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.
Lamivudine Impurity 1 (CAS 1235712-40-9) is a certified pharmaceutical impurity reference standard with the molecular formula C8H11N3O4S and a molecular weight of 245.26 g/mol.
Based on its molecular formula C8H11N3O4S, Lamivudine Impurity 1 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 245.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Lamivudine Standards
- Lamivudine Impurity 18 (CAS CATO-C4X-119418)
- Lamivudine EP Impurity G (CAS 160552-55-6)
- 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)
- N,N-Dimethyl-N′-(3-nitrophenyl)sulfamide (CAS 82936-48-9)
- N-(Thiazol-2-yl)pyrazolo[1,5-a]pyrimidine-2-carboxamide (CAS 676590-20-8)
- Perindopril Impurity 96 (CAS CATO-C4X-125296)
- Doxorubicin Impurity 19 (CAS CATO-C4X-203319)
- Nicorandil EP Impurity C Nitrate (CAS 88598-33-8)
- N-(2-((2-Hydroxyethyl)amino)cyclohexyl)-N-isopropylacetamide (CAS 1353965-01-1)
- 3A,4,11,11a-tetrahydrofuro[3,4-b]phenazine-1,3(5H,10H)-dione (CAS 412314-71-7)
- Ethyl 2-amino-5,6-difluoro-2,3-dihydro-1H-indene-2-carboxylate hydrochloride (CAS 1229615-05-7)
- 4-[(pyridin-4-yl)amino]benzonitrile (CAS 319016-09-6)
- 4-amino-1,1,1-trifluorobut-3-yn-2-one (CAS 120417-45-0)
- Adamantan-1-yl(3-amino-6-(pyridin-4-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridin-2-yl)methanone (CAS 625377-73-3)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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