Difelikefalin Impurity 13 CAS 2219351-61-6
| CAS No. | 2219351-61-6 |
| Molecular Formula | C38H58N8O6 |
| Molecular Weight | 722.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Difelikefalin Impurity 13 (C38H58N8O6) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Difelikefalin Impurity 13 (CAS 2219351-61-6) is a certified pharmaceutical impurity reference standard with the molecular formula C38H58N8O6 and a molecular weight of 722.92 g/mol.
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 13 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 | C38H58N8O6 |
| Molecular Weight | 722.92 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 8 |
Related Difelikefalin Standards
- Difelikefalin Impurity 11 (CAS 2219351-44-5)
- Difelikefalin Impurity 9 (CAS 1024828-90-7)
- Difelikefalin Impurity 19 (CAS CATO-C4X-304119)
- Difelikefalin Impurity 73 (CAS CATO-C4X-304173)
- Difelikefalin Impurity 74 (CAS CATO-C4X-304174)
- Difelikefalin Impurity 16 (CAS CATO-C4X-304116)
- Difelikefalin Impurity 98 (CAS CATO-C4X-304198)
- Difelikefalin Impurity 12 (CAS 2219351-45-6)
Recommended Standards
- 763903-67-9 TR856337M2 Fosalvudine tidoxil [INN] Fosalvudine tidoxil Fosalvudine HDP 99.0003 UNII-TR856337M2 (CAS 763903-67-9)
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- 1-[4-[4-(2,4-Di-tert-pentylphenoxy)butyramido]phenyl]3-pyrrolidino-4-(1-phenyltetrazol-5-yl)thiopyrazolin-5-one (CAS 107047-27-8)
- ProgeninIII (CAS 19057-67-1)
- Empagliflozin impurity 178 (CAS CATO-C4X-1065178)
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- Atosiban Impurity 45 (CAS CATO-C4X-229345)
- 4-[2-(4-Fluorophenyl)-4-methyl-1,3-thiazol-5-yl]pyrimidin-2-amine (CAS 499795-93-6)
- N-Methoxycarbonyl Vigabatrin-13C,d2 Ethyl Ester (CAS 1346599-63-0)
- Methyl 5-chloro-1-methyl-1H-pyrrolo[3,2-b]pyridine-3-carboxylate (CAS 1780871-62-6)
- 7-Aminoisoquinolin-1(2H)-one (CAS 174302-46-6)
- 3-Phenylimidazo[1,5-a]quinoxalin-4(5H)-one (CAS 531509-85-0)
- 2-Propenoic acid, 2-methyl-, monoester with 1,2-propanediol, polymer with 2-methyloxirane (CAS 67969-71-5)
- Peptide 436 (CAS CATO-CPTD788436)
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