Relugolix Impurity 156 CAS 737790-54-4
| CAS No. | 737790-54-4 |
| Molecular Formula | C28H25F2N7O5S |
| Molecular Weight | 609.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Relugolix Impurity 156 (C28H25F2N7O5S) contains a steroid core, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Relugolix Impurity 156 (CAS 737790-54-4), a pharmacopoeial impurity reference standard (molecular formula C28H25F2N7O5S, MW 609.60 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Relugolix Impurity 156 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H25F2N7O5S |
| Molecular Weight | 609.60 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Relugolix Standards
- Relugolix Impurity 3 (CAS CATO-C4X-24293)
- Relugolix Impurity N1 (CAS 1801551-07-4)
- Relugolix Impurity 115 (CAS 2814571-37-2)
- Relugolix Impurity 18 (CAS CATO-C4X-242918)
- Relugolix Impurity 44 (CAS CATO-C4X-242944)
- Relugolix Impurity 97 (CAS CATO-C4X-242997)
- Relugolix Impurity 165 (CAS CATO-C4X-2429165)
- Relugolix Impurity 91 (CAS CATO-C4X-242991)
Recommended Standards
- Nafamostat impurity 113 (CAS CATO-C4X-1332113)
- Pyribenzoxim (CAS 168088-61-7)
- (E)-{[1-(4-chlorophenyl)-4-[(4-methylphenyl)sulfanyl]-2-phenyl-6,7-dihydro-1H-indol-5-yl]methylidene}amino 4-chlorobenzoate (CAS 478033-26-0)
- (S)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)trimethylsilanyloxy)methyl]pyrrolidine (S)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)trimethylsilyloxy)methyl]pyrrolidine (S)-|A,|A-Bis[3,5-bis(trifluoromethyl)phenyl]-2-pyrrolidinemethanol trimethylsilyl ether (S)-|A,|A-[3,5-Bis(trifluoromethyl)phenyl]prolinol trimethylsilyl ether 848821-61-4 (CAS 848821-61-4)
- Doxazosin Impurity 14 (CAS 102932-29-6)
- Diclofenac impurity 8 (CAS CATO-C4X-16148)
- Tucatinib Impurity N5 (CAS 4706-13-2)
- Pitolisant impurity 6 (CAS CATO-C4X-25206)
- Temsirolimus (CAS 162635-04-3)
- 4-(3-Bromophenoxy)pyrimidine (CAS 315189-72-1)
- Diethyl 4-Bromobenzylphosphonate (CAS 38186-51-5)
- 4-Chloro-5-(methoxycarbonyl)-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 2764671-11-4)
- Phloroglucinol Impurity 31 (CAS 1664-27-3)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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