Lenacapavir Impurity 5 CAS CATO-C4X-32485
| CAS No. | CATO-C4X-32485 |
| Molecular Formula | C13H10Br2F2N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Lenacapavir Impurity 5 (CAS CATO-C4X-32485) is a certified pharmaceutical impurity reference standard with the molecular formula C13H10Br2F2N2C8H15NO3 and a molecular weight of 565.25 g/mol.
Lenacapavir Impurity 5 (C13H10Br2F2N2C8H15NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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
- Arotinolol Impurity 16 (CAS CATO-C4X-185416)
- Pantoprazole EP Impurity F (CAS 721924-06-7)
- Citalopram EP Impurity F oxalate (CAS 64372-43-6)
- N-(5-bromo-2-fluorophenyl)acrylamide (CAS 1156153-35-3)
- 5-Amino-1-(3-chlorobenzyl)pyridin-2(1H)-one hydrochloride (CAS 2138005-71-5)
- 7-(morpholine-4-sulfonyl)-1,2,3,4-tetrahydroisoquinolin-1-one (CAS 1803598-98-2)
- 1-Hydroxyurea (CAS 8029-68-3)
- 3-Methylphenylacetone, 99% (CAS 18826-61-4)
- 5-Bromo-1-isopropyl-3-nitropyridin-2(1H)-one (CAS 2738978-96-4)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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