Gadoteridol impurity 29 CAS 213312-49-3
| CAS No. | 213312-49-3 |
| Molecular Formula | C43H73N3O11 |
| Molecular Weight | 808.05 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Gadoteridol impurity 29 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Gadoteridol impurity 29 (CAS 213312-49-3, C43H73N3O11) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Gadoteridol impurity 29 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 808.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C43H73N3O11 |
| Molecular Weight | 808.05 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Nitrogen Atoms | 3 |
Related Gadoteridol Standards
- Gadoteridol impurity 31 (CAS CATO-C4X-225731)
- Gadoteridol Impurity 50 (CAS CATO-C4X-225750)
- Gadoteridol impurity 33 (CAS CATO-C4X-225733)
- Gadoteridol impurity 35 (CAS 913542-71-9)
- Gadoteridol Impurity 22 (CAS CATO-C4X-225722)
- Gadoteridol impurity 32 (CAS CATO-C4X-225732)
- Gadoteridol Impurity 19 (CAS CATO-C4X-225719)
- Gadoteridol Impurity 20 (CAS CATO-C4X-225720)
Recommended Standards
- H-D-Phe-L-Phe-D-Leu-D-Lys-L-Lys-γ-Pip-OH (CAS CATO-CPTD788744)
- Iohexol impurity 34 (CAS CATO-C4X-166434)
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- Ethyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate (CAS 1155084-72-2)
- Empagliflozin Impurity 1 (CAS 864070-43-9)
- N-(2-Methyl-5,8-dioxo-5,8-dihydroquinolin-7-yl)butyramide (CAS 162219-17-2)
- Hydrocortisone Impurity 01 (CAS 10215-75-5)
- (2-Fluoro-benzyl)-[2-(1H-indol-3-yl)-ethyl]-amine oxalate (CAS 1048328-18-2)
- 5-(3-Fluorophenyl)-2-methyl-1H-pyrrole-3-carboxylic acid (CAS 1521791-99-0)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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