Citicoline Impurity 4 CAS 72842-05-8
| CAS No. | 72842-05-8 |
| Molecular Formula | C11H18N4O11P2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Citicoline Impurity 4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Citicoline Impurity 4 (CAS 72842-05-8) is a certified pharmaceutical impurity reference standard with the molecular formula C11H18N4O11P2Na and a molecular weight of 467.22 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a phosphate ester group, Citicoline Impurity 4 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 467.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C11H18N4O11P2 2*Na |
| Molecular Weight | 467.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
Related Citicoline Standards
- Citicoline Impurity 8 (CAS 3036-18-8)
- Citicoline Sodium Salt (CAS 33818-15-4)
- Citicoline Impurity 109 (CAS 4421-58-3)
- Citicoline Impurity N1 XNa (CAS 51855-98-2)
- Citicoline Impurity 6 (CAS 52448-10-9)
- Citicoline Impurity D Morpholidate (CAS 76742-18-2)
- Citicoline (CAS 987-78-0)
- Citicoline Impurity 7 (CAS 99492-83-8)
Recommended Standards
- Nemonoxacin impurity 114 (CAS CATO-C4X-3128114)
- Amisulpride Impurity 11 (CAS 261614-86-2)
- Atosiban Impurity 45 (CAS CATO-C4X-229345)
- 1-(Tetrahydro-2h-pyran-4-yl)-1h-benzo[d]imidazole-4-carboxylic acid (CAS 1553564-22-9)
- Methyl 1-(phenylsulfonyl)-1H-pyrrole-3-carboxylate (CAS 169827-23-0)
- 7-Chloroquinolin-6-ol (CAS 1261561-19-6)
- 4-(Difluoromethyl)-2-iodo-5-methylnicotinoyl chloride (CAS 1805516-40-8)
- (Dicyclopropylmethyl)methylamine (CAS 884504-77-2)
- N-Methyl-N-phenylbenzamide (CAS 1934-92-5)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
Why CATO?
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