Diquafosol Impurity 31 CAS CATO-C4X-214931
| CAS No. | CATO-C4X-214931 |
| Molecular Formula | C18H22N4O23P4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Diquafosol Impurity 31 (CAS CATO-C4X-214931, C18H22N4O23P4Na) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Diquafosol Impurity 31 (C18H22N4O23P4Na) contains a flavonoid core, an amide group, a phosphate ester 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 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 | C18H22N4O23P4 4*Na |
| Molecular Weight | 809.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
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 12 (CAS 19817-92-6)
- Diquafosol Impurity 19 (CAS 2050-92-2)
Recommended Standards
- Afatinib Impurity 31 (CAS CATO-C4X-100631)
- Betamethasone Impurity 116 (CAS CATO-C4X-1437116)
- Caspofungin Impurity 17 (CAS 162808-62-0)
- 1-(5-Chlorothiophen-2-yl)-2-((2-nitropyridin-3-yl)oxy)ethan-1-one (CAS 741734-32-7)
- N-(3,4-dimethylphenyl)-2-ethyl-3-methylquinoline-4-carboxamide (CAS 332358-68-6)
- 2-Fluoro-3-(trifluoromethyl)benzoic Acid (CAS 115029-22-6)
- 6-Chloro-4-(trifluoromethyl)-1,2,3,4-tetrahydroisoquinoline (CAS 1783561-93-2)
- 2-Ethyl-7-(methylthio)-5H-[1,3,4]thiadiazolo[3,2-a][1,3,5]triazin-5-one (CAS 58326-42-4)
- 2-Chloro-5,7-dimethyl-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one (CAS 1638764-72-3)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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