Elagolix Impurity 71 CAS CATO-C4X-206871
| CAS No. | CATO-C4X-206871 |
| Molecular Formula | C31H27F5N3O5 |
| 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.
Elagolix Impurity 71 (CAS CATO-C4X-206871) is a certified pharmaceutical impurity reference standard with the molecular formula C31H27F5N3O5Na and a molecular weight of 639.55 g/mol.
The molecular framework of Elagolix Impurity 71 (C31H27F5N3O5Na) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C31H27F5N3O5 Na |
| Molecular Weight | 639.55 g/mol |
| 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) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Elagolix Standards
- Elagolix Impurity 17 (CAS 102089-74-7)
- Elagolix Impurity 56 (CAS 102089-75-8)
- Elagolix Impurity 20 (CAS 110143-62-9)
- Elagolix Impurity 6 (CAS 110611-91-1)
- Elagolix Impurity 1 (CAS 110661-91-1)
- Elagolix Impurity 3 (CAS 1150560-54-5)
- Elagolix Impurity 2 (CAS 1150560-59-0)
- Elagolix Impurity 18 (CAS 117049-14-6)
Recommended Standards
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- 5-Methyl-2-phenyl-4-((phenylamino)methylene)-2,4-dihydro-3H-pyrazol-3-one (CAS 4173-73-3)
- 2-(8-Hydroxyquinolin-5-yl)acetic acid (CAS 57434-92-1)
- 5H,6H,7H,8H,9H-[1,2,3,4]tetrazolo[1,5-a]azepin-7-amine hydrochloride (CAS 1909325-69-4)
- N-(4-bromo-3-methylphenyl)-2-((1-phenyl-1H-tetrazol-5-yl)thio)acetamide (CAS 329078-97-9)
- (S)-4-(tert-butoxy)-4-oxo-2-phenethylbutanoic acid (CAS 1229380-94-2)
- 1-(2-(Thiophen-3-yl)cyclopropyl)ethan-1-one (CAS 1152533-38-4)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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