Theophylline Impurity 14 CAS CATO-C4X-182314
| CAS No. | CATO-C4X-182314 |
| Molecular Formula | C6H9N5O2 |
| Molecular Weight | 183.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Theophylline Impurity 14 (CAS CATO-C4X-182314) is a certified pharmaceutical impurity reference standard with the molecular formula C6H9N5O2 and a molecular weight of 183.17 g/mol.
Structurally, Theophylline Impurity 14 (C6H9N5O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 183.17 g/mol, it falls into the medium-molecular-weight range. 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 | C6H9N5O2 |
| Molecular Weight | 183.17 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 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Theophylline Standards
- Theophylline-1,3-15N2,13C (CAS 1246816-25-0)
- Theophylline-1,3-15N2-2-13C, 98% (CP) (CAS 84718-95-6)
- Theophylline Impurity 12 (CAS CATO-C4X-182312)
- Theophylline Impurity 27 (CAS 15837-08-8)
- Theophylline-d6 (CAS 117490-39-8)
- Theophylline EP Impurity E (CAS 944-73-0)
- Theophylline Impurity 3 (CAS 40012-14-4)
- Theophylline Impurity 3 (CAS 60797-68-4)
Recommended Standards
- Temozolomide Impurity 3 (CAS 188612-53-5)
- N-Nitroso Theophylline EP Impurity D (CAS CATO-C4X-18238)
- Temozolomide Impurity 19 (CAS CATO-C4X-135319)
- Acephate (CAS 30560-19-1)
- Idebenone Impurity 12 (CAS CATO-C4X-301612)
- Solifenacin Impurity 27 HCl (CAS CATO-C4X-105327)
- Formoterol impound 144 (CAS 343618-74-6)
- (R)-2-((tert-Butoxycarbonyl)amino)-3-(2,6-dichlorophenyl)propanoic acid (CAS 261380-30-7)
- (3S,7aR)-3-(trichloromethyl)tetrahydro-1H,3H-pyrrolo[1,2-c]oxazol-1-one (CAS 1330286-50-4)
- Neratinib Impurity N2 (CAS 915941-95-6)
- Cefozopran Dihydrochloride (CAS 1262200-57-6)
- (4-(Phenylamino)phenyl)methanol (CAS 53044-23-8)
- Cyazofamid-d6 (CAS 1794756-25-4)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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