Pentoxifylline impurity 35 CAS CATO-C4X-172835
| CAS No. | CATO-C4X-172835 |
| Molecular Formula | C12H16N4O4 |
| Molecular Weight | 280.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Pentoxifylline impurity 35 (CAS CATO-C4X-172835, C12H16N4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C12H16N4O4, Pentoxifylline impurity 35 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 280.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 35 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 | C12H16N4O4 |
| Molecular Weight | 280.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Pentoxifylline Standards
- Pentoxifylline M4 (CAS 38975-44-9)
- Pentoxifylline Impurity 16 (CAS 6493-06-7)
- Pentoxifylline Impurity 29 (CAS CATO-C4X-172829)
- Pentoxifylline (CAS 6493-05-6)
- Pentoxifylline EP Impurity G (CAS 93079-86-8)
- Pentoxifylline D5 (CAS 1185995-18-9)
- Pentoxifylline Impurity 18 (CAS 1185878-98-1)
- Pentoxifylline D6 (CAS CATO-C4X-172840)
Recommended Standards
- Entacapone Impurity 36 (CAS CATO-C4X-162936)
- Phenytoin Impurity 22 (CAS CATO-C4X-186422)
- Rivastigmine impurity 36 (CAS CATO-C4X-138436)
- Amlexanox Impurity 4 (CAS CATO-C4X-21764)
- Liraglutide Impurity 13 TFA Salt (CAS CATO-C4X-199213)
- Crisaborole Impurity 145 (CAS CATO-C4X-2021145)
- Amorolfine Impurity 44 (CAS CATO-C4X-154244)
- (3,5-Difluorophenyl)(thiophen-2-yl)methanol (CAS 1249504-55-9)
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- 141801-03-8 IL-1 Receptor Peptide (human) (CAS 141801-03-8)
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