Ioversol Impurity 4 CAS 2061892-21-3
| CAS No. | 2061892-21-3 |
| Molecular Formula | C20H28I3N3O10 |
| Molecular Weight | 851.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Ioversol Impurity 4 (CAS 2061892-21-3, C20H28I3N3O10) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ioversol Impurity 4 (C20H28I3N3O10) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 851.16 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H28I3N3O10 |
| Molecular Weight | 851.16 g/mol |
| Purity | >90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Ioversol Standards
- Ioversol Impurity 10 (CAS CATO-C4X-209110)
- Ioversol Impurity 17 (CAS CATO-C4X-209117)
- Ioversol Impurity 6 (CAS 2922747-40-6)
- Ioversol Impurity 11 (CAS 2232891-06-2)
- Ioversol Impurity 15 (CAS CATO-C4X-209115)
- Ioversol Impurity 14 (CAS CATO-C4X-209114)
- Ioversol Impurity 21 (CAS CATO-C4X-209121)
- Ioversol impurity 31 (CAS CATO-C4X-209131)
Recommended Standards
- (11bR,11'bR)-4,4'-(Oxybis(2,1-phenylene))didinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine (CAS 391860-55-2)
- 1,3 Di-n-octyloxy Calix(4)arene crown-6 stereoisomer (CAS 161282-97-9)
- CAS 2456348-62-0 (CAS 2456348-62-0)
- Bis(4-((4-(decyloxy)benzoyl)oxy)phenyl) adipate (CAS 848139-53-7)
- Tinidazole Impurity 13 (CAS CATO-C4X-193013)
- Pitavastatin Impurity 12 (CAS 586966-54-3)
- Rocuronium Bromide EP Impurity E (CAS 1190105-65-7)
- (2S)-1,1-Difluoro-2-propanol (CAS 948828-04-4)
- 5-Bromo-4-fluoro-1-methyl-1H-indazole (CAS 1784678-61-0)
- Isopedicin (CAS 4431-42-9)
- 1-(3,5-Dichloro-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-3-methylimidazolidin-2-one (CAS 1092345-98-6)
- 2-(Diphenylphosphino)biphenyl (CAS 13885-09-1)
- 3-(4-Methoxy-3-trifluoromethylphenyl)-5-nitrobenzoic acid (CAS 1261911-36-7)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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