Diquafosol Impurity 22 CAS CATO-C4X-214922
| CAS No. | CATO-C4X-214922 |
| Molecular Formula | C13H10F3N5O3S |
| Molecular Weight | 373.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diquafosol Impurity 22 (CAS CATO-C4X-214922) is a certified pharmaceutical impurity reference standard with the molecular formula C13H10F3N5O3S and a molecular weight of 373.31 g/mol.
Diquafosol Impurity 22 (C13H10F3N5O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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.
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 | C13H10F3N5O3S |
| Molecular Weight | 373.31 g/mol |
| Purity | ≥95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Diquafosol Standards
- Diquafosol Impurity 20 (CAS 2922-94-3)
- Diquafosol Impurity 15 (CAS 10003-94-8)
- Diquafosol Impurity 14 (CAS 1603-79-8)
- Diquafosol Impurity 19 (CAS 2050-92-2)
- Diquafosol Tetrasodium Salt (CAS 211427-08-6)
- Diquafosol Impurity 10 Trisodium Salt Dihydrate (CAS 116295-90-0)
- Diquafosol Impurity 12 (CAS 19817-92-6)
- Diquafosol Impurity 2 (CAS 1402828-42-5)
Recommended Standards
- 3-cyano-6-(3,6-dihydro-2H-pyran-4-yl)pyrazolo[1,5-a]pyridin-4-yl trifluoromethanesulfonate (CAS CATO-C3D-262135)
- 2-3-4-6-Tetra-O-acetyl-β-D-glucopyranosyl azide (CAS 13992-25-1)
- Methyl 2-((4-cyano-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)sulfonyl)benzoate (CAS 318284-62-7)
- 2-3-4-6-Tetra-O-acetyl-β-D-galactopyranosyl azide (CAS 13992-26-2)
- Nerandomilast impurity 21 (CAS CATO-C4X-347321)
- Isavuconazole Impurity 236 (CAS CATO-C4X-1236236)
- Ozenoxacin Impurity 66 (CAS 23612-56-8)
- Pcb No. 194 (CAS 35694-08-7)
- 2,9-Diheptylanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone (CAS 95689-91-1)
- ethyl 2-methylimidazo[2,1-b]thiazole-5-carboxylate (CAS 1017273-57-2)
- (2S,4R)-1-(tert-butoxycarbonyl)-4-fluoro-2-methylpyrrolidine-2-carboxylic acid (CAS 1447944-00-4)
- Ezetimibe Impurity 66 (CAS 204589-68-4)
- 4-Cyclopropoxy-3-methoxy-5-methylpyridine (CAS 1243457-27-3)
- A-18-F-NH2; Morphine Modulating Neuropeptide (CAS 99588-52-0)
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