Ulipristal Impurity 17 CAS CATO-C4X-191517
| CAS No. | CATO-C4X-191517 |
| Molecular Formula | C32H39NO5 |
| Molecular Weight | 517.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ulipristal Impurity 17 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ulipristal Impurity 17 (CAS CATO-C4X-191517), a pharmacopoeial impurity reference standard (molecular formula C32H39NO5, MW 517.66 g/mol) used for the identification and quantification of trace impurities in APIs.
Ulipristal Impurity 17 (C32H39NO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, 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.
As a certified reference material (CRM), Ulipristal Impurity 17 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 | C32H39NO5 |
| Molecular Weight | 517.66 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ulipristal Standards
- Ulipristal Impurity 20 (CAS CATO-C4X-191520)
- Ulipristal Impurity 10 (CAS 244206-56-2)
- Ulipristal Related Compound A (CAS 730962-28-4)
- Ulipristal Impurity 11 (CAS CATO-C4X-191511)
- Ulipristal Impurity 22 (CAS CATO-C4X-191522)
- Ulipristal impurity 52 (CAS CATO-C4X-191532)
- Ulipristal-d6 Acetate (CAS 1621894-64-1)
- Ulipristal acetate D3(acyl D3) (CAS CATO-C4X-191533)
Recommended Standards
- Fexofenadine N-Oxide (CAS 1422515-52-3)
- 3',6'-Bis(diethylamino)-2-phenylspiro[isoindoline-1,9'-xanthen]-3-one (CAS 38660-35-4)
- 1-(4-((4-(Dioctylamino)phenyl)diazenyl)phenyl)-2,2,2-trifluoroethan-1-one (CAS 193154-07-3)
- 2,7-Bis[(4-methyl-1-piperidinyl)sulfonyl]-9H-fluoren-9-one Oxime (CAS 327061-16-5)
- Vortioxetine Impurity 66 (CAS 4001-61-0)
- Perampanel impurity 49 (CAS CATO-C4X-243049)
- Drospirenone EP Impurity H (CAS 932388-89-1)
- 4-Cyclopropylpyridine hydrochloride (CAS 5046-52-6)
- N-(4-Methoxybenzyl)-[3,4'-bipyridin]-5-amine (CAS 821784-62-7)
- 2,3-Diethyl (2s,3s)-aziridine-2,3-dicarboxylate (CAS 136314-88-0)
- n1-(3,4-Dichlorobenzyl)-n2,n2-dimethylethane-1,2-diamine (CAS 91429-04-8)
- 5-(4-Methoxybenzyl)-1,3,4-oxadiazol-2-amine (CAS 1016676-66-6)
- 1040693-03-5 3-[(3-Methoxypropyl)amino]-N-methylpropanamide 7938AC C8H18N2O2 (CAS 1040693-03-5)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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