Difelikefalin Impurity 74 CAS CATO-C4X-304174
| CAS No. | CATO-C4X-304174 |
| Molecular Formula | C38H55N7O7 |
| Molecular Weight | 721.89 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Difelikefalin Impurity 74 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.
As a process- or degradation-related impurity, Difelikefalin Impurity 74 (CAS CATO-C4X-304174, C38H55N7O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C38H55N7O7, Difelikefalin Impurity 74 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 721.89 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).
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 | C38H55N7O7 |
| Molecular Weight | 721.89 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Difelikefalin Standards
- Difelikefalin Impurity 19 (CAS CATO-C4X-304119)
- Difelikefalin Impurity 73 (CAS CATO-C4X-304173)
- Difelikefalin Impurity 9 (CAS 1024828-90-7)
- Difelikefalin Impurity 11 (CAS 2219351-44-5)
- Difelikefalin Impurity 13 (CAS 2219351-61-6)
- Difelikefalin Impurity 84 (CAS CATO-C4X-304184)
- Difelikefalin Impurity 16 (CAS CATO-C4X-304116)
- Difelikefalin Impurity 98 (CAS CATO-C4X-304198)
Recommended Standards
- Ac-D-Phe-D-Phe-D-Leu-D-Lys-γ-Pip-OH (CAS CATO-CPTD788711)
- H-D-Phe-D-Phe-D-Leu-D-Lys(Ac)-γ-Pip-OH (CAS CATO-CPTD788712)
- Kukoamine Impurity 8 (CAS CATO-C4X-22968)
- H-D-Phe-D-Phe-D-Leu-D-Lys-γ-Pip(Ac)-OH (CAS CATO-CPTD788713)
- Atomoxetine impurity 41 (CAS 1010818-92-4（free base）)
- Furosemide Impurity 60 (CAS 866764-34-3)
- Valaciclovir EP Impurity J (CAS 142963-63-1)
- Cis-cyclohexane-1,2-diyl bis(4-methylbenzenesulfonate) (CAS 5433-22-7)
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- 2-((2-Bromo-4-methylthiazol-5-yl)methyl)isoindoline-1,3-dione (CAS 1151512-21-8)
- 4-[6-(2-Methoxyphenyl)-pyridin-3-yl]-pyrimidin-2-ylamine (CAS 2088945-23-5)
- 1-tert-Butyl 4-Ethyl 3,3-difluoro-4-methylpiperidine-1,4-dicarboxylate (CAS 1334416-35-1)
- 2-(5-Acetamido-2-methyl-1H-imidazol-1-yl)ethyl acetate hydrochloride (CAS 1217068-35-3)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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