Ulipristal Impurity 31 CAS 54201-84-2
| CAS No. | 54201-84-2 |
| Molecular Formula | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 402.52 g/mol gives Ulipristal Impurity 31 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Ulipristal Impurity 31 (CAS 54201-84-2, C24H34O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H34O5, Ulipristal Impurity 31 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 402.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Ulipristal Impurity 31 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 | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Ulipristal Standards
- Ulipristal Impurity 27 (CAS 1655514-79-6)
- Ulipristal Impurity 9 (CAS CATO-C4X-19159)
- Ulipristal Impurity 4 (CAS 244206-52-8)
- Ulipristal Impurity 12 (CAS CATO-C4X-191512)
- Ulipristal Impurity 13 (CAS CATO-C4X-191513)
- Ulipristal Impurity 1 (CAS 159681-67-1)
- Ulipristal Impurity 14 (CAS CATO-C4X-191514)
- Ulipristal Impurity 16 (CAS 159811-51-5)
Recommended Standards
- Lovastatin EP Impurity F (CAS 1048973-04-1)
- Bimatoprost Acid Methyl Ester (CAS 38315-47-8)
- Medroxyprogesterone Acetate EP Impurity A (CAS 984-47-4)
- Iloprost Impurity 8 (CAS CATO-C4X-32028)
- Semaglutide impurity 01 (CAS 1998701-31-7)
- Moxifloxacin Impurity 152 (CAS 1932592-78-3)
- Bilastine Impurity 64 (CAS CATO-C4X-225364)
- Tert-butyl 4-(1-amino-2-methoxy-2-oxoethyl)-3-methylpiperidine-1-carboxylate (CAS 2228085-40-1)
- (S)-N-methylquinuclidin-3-amine (CAS 1206598-69-7)
- Amyl laurate (CAS 5350-03-8)
- Diethofencarb (CAS 87130-20-9)
- 5-Methyl-3-pyrrolidin-2-yl-[1,2,4]oxadiazole hydrochloride (CAS 1361116-53-1)
- Tryptophan Impurity 44 (CAS 101948-12-3)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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