Diquafosol Impurity 12 CAS 19817-92-6
| CAS No. | 19817-92-6 |
| Molecular Formula | C9H12N2O15P3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H12N2O15P3NaH2O, Diquafosol Impurity 12 contains a carbohydrate-derived structure, an amide group, a phosphate ester group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 522.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Diquafosol Impurity 12 (CAS 19817-92-6) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12N2O15P3NaH2O and a molecular weight of 522.12 g/mol.
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.
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 | C9H12N2O15P3 3*Na H2O |
| Molecular Weight | 522.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related Diquafosol Standards
- Diquafosol Impurity 15 (CAS 10003-94-8)
- Diquafosol Impurity 10 Trisodium Salt Dihydrate (CAS 116295-90-0)
- Diquafosol Impurity 2 (CAS 1402828-42-5)
- Diquafosol Impurity 7 (CAS 14264-46-1)
- Diquafosol Impurity 14 (CAS 1603-79-8)
- Diquafosol Impurity 9 (CAS 19817-91-5)
- Diquafosol Impurity 19 (CAS 2050-92-2)
- Diquafosol Tetrasodium Salt (CAS 211427-08-6)
Recommended Standards
- N-Nitroso Cinnarizine EP Impurity A (CAS 1698-25-5)
- Benidipine Impurity 55 (CAS CATO-C4X-112055)
- Cariprazine Impurity 28 (CAS CATO-C4X-240828)
- 2-Phenyl-4-(4-phenylcyclohexylidene)oxazol-5(4H)-one (CAS 823813-50-9)
- (2-Aminophenyl)diethylphosphine oxide (CAS 1407520-18-6)
- Sitagliptin impurity 146 (CAS CATO-C4X-1144146)
- 4’-Propylbiphenyl-4-boronic Acid (CAS 153035-56-4)
- 2-Chloro-4-methyl-6-phenylpyrimidine (CAS 32785-40-3)
- (3S,4S)-4-fluorotetrahydrofuran-3-amine (CAS 2306249-37-4)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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