Relugolix Impurity 91 CAS CATO-C4X-242991
| CAS No. | CATO-C4X-242991 |
| Molecular Formula | C29H28FN7O5S |
| Molecular Weight | 605.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C29H28FN7O5S, Relugolix Impurity 91 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 605.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Relugolix Impurity 91 (CAS CATO-C4X-242991) is a certified pharmaceutical impurity reference standard with the molecular formula C29H28FN7O5S and a molecular weight of 605.64 g/mol.
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.
As a certified reference material (CRM), Relugolix Impurity 91 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 | C29H28FN7O5S |
| Molecular Weight | 605.64 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Relugolix Standards
- Relugolix Impurity 185 (CAS CATO-C4X-2429185)
- Relugolix Impurity 42 (CAS CATO-C4X-242942)
- Relugolix Impurity 115 (CAS 2814571-37-2)
- Relugolix Impurity 156 (CAS 737790-54-4)
- Relugolix Impurity 3 (CAS CATO-C4X-24293)
- Relugolix Impurity N1 (CAS 1801551-07-4)
- Relugolix Impurity 18 (CAS CATO-C4X-242918)
- Relugolix Impurity 44 (CAS CATO-C4X-242944)
Recommended Standards
- Tris(3'-carboxybiphenyl)amine (CAS 2338875-40-2)
- Suc-Ala-Ala-Pro-Lys-pNA (CAS 108929-39-1)
- Sarpogrelate Impurity N1 (CAS 1588890-70-3)
- Suc-Ala-Ala-Pro-Arg-pNA (CAS 131068-47-8)
- Ticagrelor Impurity 105 (CAS 1858267-99-8)
- Atrasentan Impurity 165 (CAS 1059043-32-1)
- Ursodeoxycholic Acid Impurity 116 (CAS 67733-54-4)
- (3-Boc-amino-thiophen-2-yl)-methanol (CAS 368442-46-0)
- (S)-6-Chloro-N-(1-phenylethyl)pyrimidin-4-amine (CAS 372183-76-1)
- Ethyl 4'-nitro-[1,1'-biphenyl]-4-carboxylate (CAS 6242-99-5)
- 1-benzylpyrrolidine-2,3-dione (CAS 58486-00-3)
- 2-(3-(Benzyl(methyl)amino)piperidin-1-yl)acetic acid (CAS 1353984-81-2)
- 4-(Difluoromethyl)-3,5-dihydroxypyridine-2-sulfonyl chloride (CAS 1806891-94-0)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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