Doxofylline Impurity 7 CAS CATO-C4X-15137
| CAS No. | CATO-C4X-15137 |
| Molecular Formula | C10H14N4O5 |
| Molecular Weight | 270.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Doxofylline Impurity 7 (CAS CATO-C4X-15137, C10H14N4O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Doxofylline Impurity 7 (C10H14N4O5) contains an amino-acid-derived structure, 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 270.24 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C10H14N4O5 |
| Molecular Weight | 270.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Doxofylline Standards
- Doxofylline-d4 (CAS 1346599-13-0)
- Doxofylline Impurity 19 (CAS 254760-82-2)
- Doxofylline Impurity 6 (CAS 1429636-72-5)
- Doxofylline-d6 (dimethyl-d6) (CAS 1219805-99-8)
- Doxofylline (CAS 69975-86-6)
- Doxofylline Impurity 14 (CAS 7029-96-1)
- Doxofylline Impurity 3 (CAS 1174289-18-9)
- Doxofylline impurity 45 (CAS 96474-41-8)
Recommended Standards
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- 2-Chloro-N-(2,5-diethoxy-4-morpholinophenyl)propanamide hydrochloride (CAS 1172248-02-0)
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