Elagolix Impurity N20 CAS 1311320-17-8
| CAS No. | 1311320-17-8 |
| Molecular Formula | C13H18FNO3 |
| Molecular Weight | 255.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Elagolix Impurity N20 (CAS 1311320-17-8), a pharmacopoeial impurity reference standard (molecular formula C13H18FNO3, MW 255.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Elagolix Impurity N20 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H18FNO3 |
| Molecular Weight | 255.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Elagolix Standards
- Elagolix Impurity 104 (CAS CATO-C4X-2068104)
- Elagolix Impurity 107 (CAS CATO-C4X-2068107)
- Elagolix Impurity 96 (CAS CATO-C4X-206896)
- Elagolix Impurity 99 (CAS CATO-C4X-206899)
- Elagolix Impurity 4 (CAS 2316733-82-9)
- Elagolix Impurity 103 (CAS CATO-C4X-2068103)
- Elagolix Impurity 50 (CAS CATO-C4X-206850)
- Elagolix Impurity 33 (CAS CATO-C4X-206833)
Recommended Standards
- tert-butyl N-[(2S)-2-(4-fluorophenyl)-2-hydroxyethyl]carbamate (CAS 1311320-16-7)
- tert-butyl N-[(2S)-2-(2-fluorophenyl)-2-hydroxyethyl]carbamate (CAS 1311320-25-8)
- 3-(2-Methylfuran-3-carboxamido)tetrahydrothiophene-3-carboxylic acid (CAS 1284598-46-4)
- Tert-butyl n-[(2r)-2-(4-fluorophenyl)-2-hydroxyethyl]carbamate (CAS 1311320-28-1)
- Cefoxitin Impurity 9 (CAS CATO-C4X-15789)
- Furosemide EP Impurity F (CAS 4793-38-8)
- Fesoterodine Impurity 2 (CAS 1431511-18-0)
- Letermovir Impurity 17 (CAS CATO-C4X-291517)
- 4-(2-Hydroxyethyl)-5-methyl-1-(4-nitrobenzoyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 860611-87-6)
- 2-((2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-5-fluoro-6-methylpyrimidin-4-yl)thio)acetic acid (CAS 1823183-14-7)
- 4-Fluoro-3-(pentyloxy)benzoic acid (CAS 1443302-87-1)
- 4-(Chloromethyl)-6-methoxy-3,4'-bipyridine (CAS 1227507-96-1)
- 2-Bromo-4-methyl-1H-imidazole-5-carbonitrile (CAS 113444-53-4)
- Glucagon Monohydrochloride (CAS 28270-04-4)
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