Difelikefalin Impurity 23 Trifluoroacetic acid CAS CATO-C4X-304123
| CAS No. | CATO-C4X-304123 |
| Molecular Formula | C42H59N7O9 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Difelikefalin Impurity 23 Trifluoroacetic acid is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 920.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Difelikefalin Impurity 23 Trifluoroacetic acid (CAS CATO-C4X-304123), a pharmacopoeial impurity reference standard (molecular formula C42H59N7O9C2HF3O2, MW 920.00 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Difelikefalin Impurity 23 Trifluoroacetic acid 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 | C42H59N7O9 C2HF3O2 |
| Molecular Weight | 920.00 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
Related Difelikefalin Standards
- Difelikefalin Impurity 46 (CAS 1021171-64-1)
- Difelikefalin (CAS 1024828-77-0)
- Difelikefalin Impurity 5 (CAS 1024828-78-1)
- Difelikefalin Impurity 9 (CAS 1024828-90-7)
- Difelikefalin XAcetate (CAS 1024829-44-4)
- Difelikefalin Impurity 65 (CAS 1024829-72-8)
- Difelikefalin Impurity 61 (CAS 1024829-76-2)
- Difelikefalin Impurity 4 (CAS 1173664-52-2)
Recommended Standards
- Roxadustat Impurity 20 (CAS 2599284-48-5)
- Rotigotine impurity 22 (CAS CATO-C4X-192722)
- Cetirizine impurity N1 (CAS 58023-19-1)
- 1-(8-Azabicyclo[3.2.1]oct-2-en-8-yl)-3-phenylprop-2-en-1-one (CAS 1798408-72-6)
- Chlorphenamine Impurity 26 (CAS CATO-C4X-118826)
- Methyl 6-bromo-5-nitropicolinate (CAS 1805557-84-9)
- N-Acetyl-5-bromo-4-chloro-3-hydroxyindole, 98% (CAS 125328-76-9)
- Methyl 4-Bromothiophene-3-carboxylate (CAS 78071-37-1)
- (11aS)-10,11,12,13-Tetrahydro-N,N-bis(1-methylethyl)diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-amine (CAS 477559-83-4)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
Why CATO?
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