Relugolix Impurity 45 CAS CATO-C4X-242945
| CAS No. | CATO-C4X-242945 |
| Molecular Formula | C25H27F2N3O4S |
| Molecular Weight | 503.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Relugolix Impurity 45 (C25H27F2N3O4S) is characterized by a flavonoid core, an amide group, a sulfone 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. 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).
Relugolix Impurity 45 (CAS CATO-C4X-242945) is a certified pharmaceutical impurity reference standard with the molecular formula C25H27F2N3O4S and a molecular weight of 503.56 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.
As a certified reference material (CRM), Relugolix Impurity 45 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H27F2N3O4S |
| Molecular Weight | 503.56 g/mol |
| Purity | >95% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Relugolix Standards
- Relugolix Impurity 61 (CAS CATO-C4X-242961)
- Relugolix Impurity 119 (CAS 308831-94-9)
- Relugolix Impurity 108 (CAS CATO-C4X-2429108)
- Relugolix Impurity 201 (CAS CATO-C4X-2429201)
- Relugolix Impurity 86 (CAS CATO-C4X-242986)
- Relugolix Impurity 189 (CAS CATO-C4X-2429189)
- Relugolix Impurity 88 (CAS CATO-C4X-242988)
- Relugolix Impurity 184 (CAS CATO-C4X-2429184)
Recommended Standards
- Ticagrelor Impurity 80 (CAS CATO-C4X-109380)
- Preladenant (CAS 377727-87-2)
- Dichloroformamidine (CAS 500008-55-9)
- rel-Methyl 3-(2-((4-(trifluoromethoxy)phenyl)amino)-1-((1R,5R)-3,3,5-trimethylcyclohexyl)-1H-benzo[d]imidazol-5-yl)propanoate (CAS 1803274-45-4)
- Perampanel Impurity 6 (CAS 381725-50-4)
- Imrecoxib Impurity 7 (CAS CATO-C4X-23797)
- Pantoprazole Impurity 16 (CAS 1806469-15-7)
- 1-(4-Fluorophenyl)pentan-2-ol (CAS 158526-52-4)
- cis-3-tert-Butoxycyclobutanamine (CAS 1638765-46-4)
- 2-(2-Bromophenoxy)-4-methyl-1-nitrobenzene (CAS 1516187-55-5)
- 2-Aminobenzo[d]thiazol-5-ol (CAS 118526-19-5)
- 1-(10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-yl)-piperidin-4-ylamine (CAS 913979-79-0)
- Methyl 5-amino-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1352412-93-1)
- Tirzepatide-d7 Ditrifluoroacetate (CAS CATO-CPTD788698)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com