Doxofylline Impurity 49 CAS CATO-C4X-151349
| CAS No. | CATO-C4X-151349 |
| Molecular Formula | C11H16N4O5 |
| Molecular Weight | 284.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Doxofylline Impurity 49 (CAS CATO-C4X-151349) is a certified pharmaceutical impurity reference standard with the molecular formula C11H16N4O5 and a molecular weight of 284.27 g/mol.
Doxofylline Impurity 49 (C11H16N4O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Doxofylline Impurity 49 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H16N4O5 |
| Molecular Weight | 284.27 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 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 Impurity 4 (CAS 2095554-12-2)
- Doxofylline Impurity 43 (CAS CATO-C4X-151343)
- Doxofylline-d6 (dimethyl-d6) (CAS 1219805-99-8)
- Doxofylline Impurity 13 (CAS 43135-57-5)
- Doxofylline impurity 44 (CAS CATO-C4X-151344)
- Doxofylline-d4 (CAS 1346599-13-0)
- Doxofylline Impurity 7 (CAS CATO-C4X-15137)
- Doxofylline Impurity 21 (CAS CATO-C4X-151321)
Recommended Standards
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- Ribavirin RC 3 (CAS 69313-80-0)
- Perospirone Impurity 44 (CAS CATO-C4X-245844)
- Dapagliflozin Impurity 90 (CAS 29643-62-7)
- Azacitidine Impurity 35 (CAS 686299-20-7)
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- Azelnidipine Impurity 10 (CAS CATO-C4X-104010)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com