Gadoxetate Impurity 35 CAS CATO-C4X-261835
| CAS No. | CATO-C4X-261835 |
| Molecular Formula | C22H26N3O11 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Gadoxetate Impurity 35.
As a process- or degradation-related impurity, Gadoxetate Impurity 35 (CAS CATO-C4X-261835, C22H26N3O11Na) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Gadoxetate Impurity 35 (C22H26N3O11Na) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C22H26N3O11 5*Na |
| Molecular Weight | 531.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Gadoxetate Standards
- Gadoxetate Disodium (CAS 135326-22-6)
- Gadoxetate Impurity 14 (CAS 158599-72-5)
- Gadoxetate Impurity 7 (CAS 158599-73-6)
- Gadoxetate Impurity 5 (CAS 158599-73-6(free base）)
- Gadoxetate impurity 23 (CAS 1618674-24-0)
- Gadoxetate Disodium Impurity 6 (CAS 200267-69-2)
- Gadoxetate Impurity 11 (CAS 221640-06-8)
- Gadoxetate Impurity 1 (CAS CATO-C4X-26181)
Recommended Standards
- Indobufen Impurity 5 (CAS CATO-C4X-17925)
- Cefodizime Impurity 23 (CAS CATO-C4X-180623)
- Esomeprazole Impurity 65 (CAS CATO-C4X-111265)
- Ethyl 2-methoxyethoxycarbamate (CAS 63767-50-0)
- 1,3-Bis((tert-butyldimethylsilyl)oxy)benzene (CAS 120951-86-2)
- 1-(2-Chlorophenyl)-3-azabicyclo[3.1.0]hexane HCl (CAS 66504-70-9)
- 4-Allyl-5-(3-bromophenyl)-4H-1,2,4-triazole-3-thiol (CAS 341013-59-0)
- 2-(((4-Chloro-2-methylphenyl)amino)methyl)isoindoline-1,3-dione (CAS 199803-03-7)
- Loperamide EP Impurity A (CAS 1391052-94-0)
- Semaglutide Impurity 6 (CAS 62-57-7)
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