Relugolix Impurity 25 CAS CATO-C4X-242925
| CAS No. | CATO-C4X-242925 |
| Molecular Formula | C55H60F4N6O9S2 |
| Molecular Weight | 1089.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Relugolix Impurity 25 (CAS CATO-C4X-242925, C55H60F4N6O9S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Relugolix Impurity 25 (C55H60F4N6O9S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C55H60F4N6O9S2 |
| Molecular Weight | 1089.22 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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Relugolix Standards
- Relugolix Impurity 49（E-isomer） (CAS CATO-C4X-242949)
- Relugolix Impurity 7 (CAS CATO-C4X-24297)
- Relugolix Impurity 183 (CAS CATO-C4X-2429183)
- Relugolix Impurity 21 (CAS CATO-C4X-242921)
- Relugolix Impurity 177 (CAS CATO-C4X-2429177)
- Relugolix Impurity 182 (CAS CATO-C4X-2429182)
- Relugolix Impurity 68 (CAS CATO-C4X-242968)
- Relugolix Impurity 28 (CAS CATO-C4X-242928)
Recommended Standards
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- Ruxolitinib Impurity 71 (CAS CATO-C4X-205871)
- Hydroxychloroquine Impurity 41 (CAS CATO-C4X-183541)
- Orforglipron Impurity 58 (CAS 2212021-58-2)
- 5α-Cholestan-3β-ol-d (CAS 84061-69-8)
- 2-(2,4-Dioxo-1,2-dihydropyrido[3,2-d]pyrimidin-3(4H)-yl)propanoic acid (CAS 552298-13-2)
- 1-Cyclopentyl-4-methyl-3-nitro-1H-pyrazole (CAS 1262865-30-4)
- N-(3-chloro-4-fluorophenyl)-N-[(3-methylthien-2-yl)methyl]amine (CAS 851457-05-1)
- Lifitegrast Impurity 140 (CAS CATO-C4X-2409140)
- 1,3-Dimethoxy-2,5-dimethylbenzene (CAS 21390-25-0)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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