Ulipristal Impurity 9 CAS CATO-C4X-19159
| CAS No. | CATO-C4X-19159 |
| Molecular Formula | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ulipristal Impurity 9 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.
As a process- or degradation-related impurity, Ulipristal Impurity 9 (CAS CATO-C4X-19159, C24H34O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Ulipristal Impurity 9 (C24H34O5) contains a flavonoid core, a hydroxyl group, an ether linkage. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
Related Ulipristal Standards
- Ulipristal Impurity 27 (CAS 1655514-79-6)
- Ulipristal Impurity 31 (CAS 54201-84-2)
- 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
- Bimatoprost Acid Methyl Ester (CAS 38315-47-8)
- Iloprost Impurity 8 (CAS CATO-C4X-32028)
- Lovastatin EP Impurity F (CAS 1048973-04-1)
- Iloprost Impurity 9 (CAS CATO-C4X-32029)
- Exemestane Impurity 27 (CAS 600178-04-9)
- Mirabegron Impurity 74 (CAS 24008-62-6)
- Rocuronium Impurity 34 (CAS CATO-C4X-124234)
- ETN029 (CAS 3066864-32-9)
- Oseltamivir Impurity 44 (CAS 2413185-87-0)
- 4-Methyl-5-(trifluoromethyl)pyridin-2(1H)-one (CAS 1590412-13-7)
- 5-Methyl-3-(piperazin-1-yl)-1,2,4-oxadiazole (CAS 1019637-82-1)
- 3-[(oxolan-2-yl)methyl]-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 422274-58-6)
- Methyl (E)-3-(4-chlorophenyl)-2-[(4-methylphenyl)sulfonyl]-2-propenoate (CAS 147435-97-0)
- (Cys2)-Neuropeptide Y-8-aminooctanoyl-(D-Cys27)-Neuropeptide Y (25-32) (H-3298.0500) (CAS 128806-04-2)
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