Gadobutrol Impurity 7 CAS CATO-C4X-21207
| CAS No. | CATO-C4X-21207 |
| Molecular Formula | Gd3 |
| 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 Gadobutrol Impurity 7.
Gadobutrol Impurity 7 (CAS CATO-C4X-21207) is a certified pharmaceutical impurity reference standard with the molecular formula Gd3C17H27N4O8 and a molecular weight of 887.17 g/mol.
Gadobutrol Impurity 7 (Gd3C17H27N4O8) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Gadobutrol Impurity 7 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | Gd3 C17H27N4O8 |
| Molecular Weight | 887.17 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Gadobutrol Standards
- Gadobutrol Impurity 112 (CAS 1003-83-4)
- Gadobutrol Impurity 12 4HCl (CAS 10045-25-7)
- Gadobutrol Impurity 79 (CAS 105855-71-8)
- Gadobutrol Impurity 115 (CAS 112-24-3)
- Gadobutrol EP Impurity C (Gadoteridol USP Related Compound B) (CAS 112188-16-6)
- Gadobutrol Impurity N5 (CAS 112193-75-6)
- Gadobutrol Impurity 104 4HCl (CAS 112193-75-6（free base）)
- Gadobutrol Impurity 37 (Cyclen Disulfate) (CAS 112193-77-8)
Recommended Standards
- Goserelin Impurity 52 (CAS CATO-C4X-192052)
- Etrasimod Impurity 29 (CAS CATO-C4X-321429)
- Rupatadine Impurity 24 (CAS 100910-66-5)
- 1-Butyryl-3-(3,5-dichlorophenyl)imidazolidine-2,4-dione (CAS 90815-16-0)
- 4-(Dimethylamino)butanoyl chloride hydrochloride (CAS 98827-32-8)
- 4-Benzyl-9,12-dioxa-4-azadispiro[4.2.4⁸.2⁵]tetradecane (CAS 1202072-51-2)
- (4-Bromophenyl)(3,5-dimethylphenyl)methanol (CAS 944684-27-9)
- Milnacipran Impurity 42 (Mixture of Enantiomers) (CAS 165259-95-0)
- 4-((4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)methyl)morpholine (CAS 70558-05-3)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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