Pentoxifylline Impurity N2 CAS 1243654-85-4
| CAS No. | 1243654-85-4 |
| Molecular Formula | C13H20N4O6 |
| Molecular Weight | 328.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pentoxifylline Impurity N2 (CAS 1243654-85-4), a pharmacopoeial impurity reference standard (molecular formula C13H20N4O6, MW 328.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pentoxifylline Impurity N2 (C13H20N4O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 328.32 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C13H20N4O6 |
| Molecular Weight | 328.32 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Pentoxifylline Standards
- Pentoxifylline Impurity 26 (CAS CATO-C4X-172826)
- Pentoxifylline Impurity N4 (CAS 84321-40-4)
- Pentoxifylline impurity 37 (CAS CATO-C4X-172837)
- Pentoxifylline EP Impurity H (CAS 200556-62-3)
- Pentoxifylline Impurity 17 (CAS 1185995-26-9)
- Pentoxifylline Impurity 18 (CAS 1185878-98-1)
- Pentoxifylline D6 (CAS CATO-C4X-172840)
- Pentoxifylline EP Impurity E (CAS 77196-87-3)
Recommended Standards
- Salvigenin (CAS 19103-54-9)
- tert-Butyl (2-(5-(trifluoromethyl)-1H-indol-3-yl)ethyl)carbamate (CAS 1132910-79-2)
- Potasan (CAS 299-45-6)
- tert-Butyl 6-(5-oxo-4-(1H-1,2,3-triazol-1-yl)-2,5-dihydro-1H-pyrazol-1-yl)nicotinate (CAS 1154097-71-8)
- Valsartan Impurity 100 (CAS CATO-C4X-1057100)
- Emtricitabine Impurity 1 (CAS 1238210-10-0)
- Fudosteine Impurity 9 (CAS CATO-C4X-14479)
- Ethyl (4-chlorophenyl)glycinate (CAS 2521-89-3)
- cis-10-Dodecenyl Acetate (CAS 35148-20-0)
- 2-((5-Ethyl-1H-indol-3-yl)thio)acetonitrile (CAS 61021-34-9)
- Methyl 4-amino-5-ethylthiophene-3-carboxylate (CAS 81741-99-3)
- 2,6-Dimethyl-4-(methoxycarbonyl)phenyl Acridine-9-carboxylate (CAS 1156506-80-7)
- 7-Bromo-5-methyl-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride (CAS 1810069-90-9)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com