Gadobutrol Impurity 4 （And Enantiomer） CAS CATO-C4X-21204
| CAS No. | CATO-C4X-21204 |
| Molecular Formula | C22H42N4O9 |
| Molecular Weight | 506.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Gadobutrol Impurity 4 （And Enantiomer） (CAS CATO-C4X-21204), a pharmacopoeial impurity reference standard (molecular formula C22H42N4O9, MW 506.59 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Gadobutrol Impurity 4 （And Enantiomer） is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 506.59 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).
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.
As a certified reference material (CRM), Gadobutrol Impurity 4 （And Enantiomer） 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 | C22H42N4O9 |
| Molecular Weight | 506.59 g/mol |
| Appearance | Off-white to pale 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Gadobutrol Standards
- Gadobutrol impurity 171 (CAS CATO-C4X-2120171)
- Gadobutrol Impurity 136 (CAS CATO-C4X-2120136)
- Gadobutrol Impurity 121 (CAS 122555-91-3)
- Gadobutrol Impurity 189 (CAS CATO-C4X-2120189)
- Gadobutrol Impurity 119 (CAS CATO-C4X-2120119)
- Gadobutrol Impurity 142 (CAS CATO-C4X-2120142)
- Gadobutrol Impurity 144 (CAS CATO-C4X-2120144)
- Gadobutrol impurity 177 (CAS CATO-C4X-2120177)
Recommended Standards
- Melatonin impurity 12 (CAS CATO-C4X-229212)
- Gentamicin Impurity 23 (CAS CATO-C4X-148023)
- Abemaciclib (CAS 1231929-97-7)
- N-Nitroso Gentamicin (CAS CATO-C4X-148022)
- Carfilzomib Impurity 68 (CAS CATO-C4X-102268)
- Gadobutrol Impurity 123 (CAS CATO-C4X-2120123)
- Brivaracetam Impurity 82 (CAS CATO-C4X-200782)
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- (4-(Methylsulfinyl)phenyl)methanaminehydrochloride (CAS 1189719-93-4)
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- 3-(2-Methoxyphenyl)-4-((2,4,6-trimethoxybenzylidene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-36-2)
- 1-(3-Ethynylphenyl)-1H-pyrrole-2,5-dione (CAS 105280-01-1)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com