Lenacapavir Impurity 4 CAS CATO-C4X-32484
| CAS No. | CATO-C4X-32484 |
| Molecular Formula | C13H10Br2F2N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H10Br2F2N2C8H15NO3, Lenacapavir Impurity 4 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 565.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Lenacapavir Impurity 4 (CAS CATO-C4X-32484) is a certified pharmaceutical impurity reference standard with the molecular formula C13H10Br2F2N2C8H15NO3 and a molecular weight of 565.25 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H10Br2F2N2 C8H15NO3 |
| Molecular Weight | 565.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 3 |
Related Lenacapavir Standards
- Lenacapavir impurity 20 (CAS 1417982-77-4)
- Lenacapavir Impurity N1 (CAS 1417983-07-3)
- Lenacapavir impurity 18 (CAS 1417983-10-8)
- Lenacapavir impurity 19 (CAS 1417984-69-0)
- Lenacapavir Impurity 2 (CAS 2189680-65-5)
- Lenacapavir (CAS 2189684-44-2)
- Lenacapavir impurity 17 (CAS 2189684-51-1)
- Lenacapavir Impurity 1 (CAS 2189684-54-4)
Recommended Standards
- Meloxicam Impurity 15 (CAS CATO-C4X-169015)
- Benzyl Alcohol Impurity 4 (CAS 122-63-4)
- Venlafaxine EP Impurity B (CAS 323176-93-8)
- 4,4,13,13-Tetraethoxy-3,14-dioxa-4,13-disilahexadecane (CAS 52217-60-4)
- Basic lead(II) carbonate (CAS 1319-46-6)
- 1-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-3-[(2,6-dichlorophenyl)methyl]-2-methyl-1,4-dihydropyridin-4-one (CAS 339017-57-1)
- 2-(4-Fluoro-2-(trifluoromethyl)phenyl)acetaldehyde (CAS 1260681-64-8)
- 1858256-38-8 (3-Naphthalen-1-yl-[1,2,4]oxadiazol-5-ylmethyl)-carbamic acid tert-butyl ester MFCD27937079 (CAS 1858256-38-8)
- 2-Hydrazinyl-3-(piperidin-1-yl)pyrazine (CAS 1708288-87-2)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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