Pentoxifylline Impurity 17 CAS 1185995-26-9
| CAS No. | 1185995-26-9 |
| Molecular Formula | - |
| Molecular Weight | 286.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a process- or degradation-related impurity, Pentoxifylline Impurity 17 (CAS 1185995-26-9, C13H14D6N4O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H14D6N4O3, Pentoxifylline Impurity 17 contains deuterium isotope labeling, 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 286.36 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H14D6N4O3 |
| Molecular Weight | 286.36 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
Related Pentoxifylline Standards
- Pentoxifylline Impurity 18 (CAS 1185878-98-1)
- Pentoxifylline D6 (CAS CATO-C4X-172840)
- Pentoxifylline D5 (CAS 1185995-18-9)
- Pentoxifylline Impurity 16 (CAS 6493-06-7)
- Pentoxifylline Impurity 29 (CAS CATO-C4X-172829)
- Pentoxifylline impurity 35 (CAS CATO-C4X-172835)
- Pentoxifylline M4 (CAS 38975-44-9)
- Pentoxifylline impurity 37 (CAS CATO-C4X-172837)
Recommended Standards
- Ethyl 4-Hydroxy-1-[(pivaloyloxy)methyl]cyclohexanecarboxylate (CAS 1956327-61-9)
- Hydroxy Pentoxifylline-d6 (rac-Lisofyllined6) (CAS 1185995-73-6)
- Diethyl 2-oxononane-1,9-dicarboxylate (CAS 105600-21-3)
- 1-(4-(Ethylsulfonyl)-2-fluorophenyl)-3-methylpiperazine (CAS 1000339-75-2)
- Theophylline Impurity 12 (CAS CATO-C4X-182312)
- Flurbiprofen Impurity 97 (CAS CATO-C4X-144497)
- Trazodone impurity 56 (CAS CATO-C4X-177256)
- Cefotaxime Impurity 86 (CAS CATO-C4X-120186)
- (1R,2R,5R)-5-Amino-2-methylcyclohexanol (CAS 70146-25-7)
- 5-([1,1'-Biphenyl]-4-yl)-4-chlorothieno[2,3-d]pyrimidine (CAS 455920-14-6)
- N-phenyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-[1,1'-biphenyl]-4-amine (CAS 1338803-75-0)
- 5-methanesulfinyl-2-methoxy-4-methylphenol (CAS 81732-00-5)
- Moxifloxacin impurity 79 (CAS 2445515-66-0)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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