Relugolix Impurity 90 CAS CATO-C4X-242990
| CAS No. | CATO-C4X-242990 |
| Molecular Formula | C20H18N6O4S |
| Molecular Weight | 438.46 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 Relugolix Impurity 90 (CAS CATO-C4X-242990), a pharmacopoeial impurity reference standard (molecular formula C20H18N6O4S, MW 438.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Relugolix Impurity 90 (C20H18N6O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
As a certified reference material (CRM), Relugolix Impurity 90 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 | C20H18N6O4S |
| Molecular Weight | 438.46 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Relugolix Standards
- Relugolix Impurity 87 (CAS CATO-C4X-242987)
- relugolix Impurity 93 (CAS CATO-C4X-242993)
- Relugolix Impurity 167 (CAS CATO-C4X-2429167)
- Relugolix Impurity 30 (CAS CATO-C4X-242930)
- Relugolix Impurity 89 (CAS CATO-C4X-242989)
- Relugolix Impurity 63 (CAS CATO-C4X-242963)
- Relugolix Impurity 159 (CAS CATO-C4X-2429159)
- Relugolix Impurity 96 (CAS CATO-C4X-242996)
Recommended Standards
- (7'-Benzyloxy-indolymethyl)formamido-malonic Diethyl Ester (CAS 1076198-99-6)
- Fluocinolone Acetonide EP Impurity B (CAS 65751-34-0)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(quinolin-3-yl)propanoic acid (CAS 1106706-63-1)
- Difluoroprednisolone-21-Acetate (CAS 52-70-0)
- Ceftazidime EP Impurity F(HCl) (CAS 628-13-7)
- Brensocatib Impurity 2 (CAS CATO-C4X-35222)
- Brexpiprazole Impurity 30 (CAS 2138169-93-2（free base）)
- Benzyl-PEG6-THP (CAS 230620-73-2)
- 3-methyl-1H,2H,3H,4H-thieno[2,3-d]pyrimidine-2,4-dione (CAS 75860-86-5)
- Imidazo[1,5-d][1,2,4]triazine (CAS 68457-59-0)
- (S)-2-amino-3-(3-nitrophenyl)propan-1-ol (CAS 792179-42-1)
- 2-(Ethylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole (CAS 65439-35-2)
- 5-Cyclopropoxy-2-(trifluoromethyl)benzamide (CAS 1243468-43-0)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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