Difelikefalin Impurity 65 CAS 1024829-72-8
| CAS No. | 1024829-72-8 |
| Molecular Formula | C29H39N3O6 |
| Molecular Weight | 525.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Difelikefalin Impurity 65 (C29H39N3O6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 525.64 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Difelikefalin Impurity 65 (CAS 1024829-72-8, C29H39N3O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Difelikefalin Impurity 65 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 | C29H39N3O6 |
| Molecular Weight | 525.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
Related Difelikefalin Standards
- Difelikefalin Impurity 94 (CAS CATO-C4X-304194)
- Difelikefalin Impurity 92 (CAS CATO-C4X-304192)
- Difelikefalin Impurity 102 (CAS CATO-C4X-3041102)
- Difelikefalin Impurity 52 (CAS 2722628-11-5)
- Difelikefalin Impurity 87 (CAS CATO-C4X-304187)
- Difelikefalin Impurity 53 (CAS CATO-C4X-304153)
- Difelikefalin Impurity 15 (CAS 368866-07-3)
- Difelikefalin Impurity 69 (CAS CATO-C4X-304169)
Recommended Standards
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- Valsartan EP Impurity B (CAS 137863-20-8)
- CAS CATO-C4X-34244 (CAS CATO-C4X-34244)
- Posaconazole Impurity 115 (CAS 122151-38-6)
- Ebastine Impurity 13 (CAS 97928-34-2)
- 4-(5-Amino-1,3,4-oxadiazol-2-yl)-1,2,5-oxadiazol-3-amine (CAS 380590-45-4)
- 3-Methyl-3'-trifluoromethylbiphenyl (CAS 844856-44-6)
- Ethyl methylprolinate (CAS 30727-23-2)
- (5Z,8Z)-7,7-Dimethylicosa-5,8-dienoic acid (CAS 89560-01-0)
- 4-Ethynyl-1-piperidinepropanoic acid (CAS 2027830-68-6)
- 3,3,3-Trifluoropropyl 2,5-dimethylphenyl sulfide (CAS 1779124-28-5)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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