Diquafosol Impurity 5 CAS CATO-C4X-21495
| CAS No. | CATO-C4X-21495 |
| Molecular Formula | C18H22N4O26P5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Diquafosol Impurity 5 (CAS CATO-C4X-21495), a pharmacopoeial impurity reference standard (molecular formula C18H22N4O26P5Na, MW 888.24 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Diquafosol Impurity 5 (C18H22N4O26P5Na) contains a flavonoid core, an amide group, a phosphate ester group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 888.24 g/mol, it falls into the high-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).
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 | C18H22N4O26P5 5*Na |
| Molecular Weight | 888.24 g/mol |
| Purity | >80% |
| 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
- Orforglipron impurity 124 (CAS CATO-C4X-3234124)
- Olodaterol Impurity 17 (CAS CATO-C4X-194317)
- Caffeine EP Impurity C (CAS 519-32-4)
- 1-(Pyrazin-2-yl)ethanethiol (CAS 1339831-56-9)
- 2-(Methylthio)pyridine (CAS 18438-38-5)
- 3,6-Dichloropyridin-2(1H)-one (CAS 57864-39-8)
- 1-(tert-Butyl)-5-nitro-1H-benzo[d]imidazole (CAS 35681-33-5)
- L-Ornithine-d6 Hydrochloride (CAS 347841-40-1)
- 2-Methyl-1-benzothiophen-7-ol (CAS 197803-66-0)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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