Pentoxifylline Impurity 15 CAS 1246816-64-7
| CAS No. | 1246816-64-7 |
| Molecular Formula | - |
| Molecular Weight | 272.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Pentoxifylline Impurity 15 (CAS 1246816-64-7, C11H8D6N4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Pentoxifylline Impurity 15 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Pentoxifylline Impurity 15 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 | C11H8D6N4O4 |
| Molecular Weight | 272.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Pentoxifylline Standards
- Pentoxifylline EP Impurity I (CAS 55247-90-0)
- Pentoxifylline (CAS 6493-05-6)
- Pentoxifylline EP Impurity G (CAS 93079-86-8)
- Pentoxifylline Impurity 14 (CAS 6493-07-8)
- Pentoxifylline impurity 35 (CAS CATO-C4X-172835)
- Pentoxifylline M4 (CAS 38975-44-9)
- Pentoxifylline Impurity 16 (CAS 6493-06-7)
- Pentoxifylline Impurity 29 (CAS CATO-C4X-172829)
Recommended Standards
- Doxofylline-d6 (dimethyl-d6) (CAS 1219805-99-8)
- Rimegepant Impurity 60 (CAS CATO-C4X-248760)
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- Pentachlorophenol-13C6 (CAS 85380-74-1)
- Zolmitriptan Impurity 3 (CAS 139264-35-0)
- delafloxacin Impurity 1 (CAS CATO-C4X-26371)
- Tadalafil Impurity 39 (CAS 14907-27-8)
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