Gadoteridol Impurity 20 CAS CATO-C4X-225720
| CAS No. | CATO-C4X-225720 |
| Molecular Formula | C22H44N4O6 |
| Molecular Weight | 460.61 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, Gadoteridol Impurity 20 (CAS CATO-C4X-225720, C22H44N4O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, Gadoteridol Impurity 20 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 460.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C22H44N4O6 |
| Molecular Weight | 460.61 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 4 |
Related Gadoteridol Standards
- Gadoteridol Impurity 19 (CAS CATO-C4X-225719)
- Gadoteridol impurity 32 (CAS CATO-C4X-225732)
- Gadoteridol impurity 30 (CAS 2172857-50-8)
- Gadoteridol impurity 36 (CAS CATO-C4X-225736)
- Gadoteridol Impurity 48 (CAS CATO-C4X-225748)
- Gadoteridol Impurity 22 (CAS CATO-C4X-225722)
- Gadoteridol Impurity 46 (CAS CATO-C4X-225746)
- Gadoteridol Impurity 26 (CAS CATO-C4X-225726)
Recommended Standards
- Diphenyl(2-(2-(trimethylsilyl)naphthalen-1-yl)phenyl)phosphane (CAS 2227375-33-7)
- Gadobutrol Impurity 16 (CAS CATO-C4X-212016)
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- Ritonavir Impurity 60 (CAS 2454100-44-6)
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