Gadobutrol impurity 179 CAS 138168-36-2
| CAS No. | 138168-36-2 |
| Molecular Formula | C18H34N4O9 |
| Molecular Weight | 450.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H34N4O9, Gadobutrol impurity 179 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 450.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Gadobutrol impurity 179 (CAS 138168-36-2) is a certified pharmaceutical impurity reference standard with the molecular formula C18H34N4O9 and a molecular weight of 450.48 g/mol.
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.
CATO manufactures Gadobutrol impurity 179 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H34N4O9 |
| Molecular Weight | 450.48 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 |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 4 |
Related Gadobutrol Standards
- Gadobutrol Impurity 16 (CAS CATO-C4X-212016)
- Gadobutrol Impurity 123 (CAS CATO-C4X-2120123)
- Gadobutrol Impurity 102 (CAS 2101625-18-5)
- Gadobutrol Impurity 182 (CAS CATO-C4X-2120182)
- Gadobutrol impurity 175 (CAS CATO-C4X-2120175)
- Gadobutrol impurity 176 (CAS CATO-C4X-2120176)
- Gadobutrol Impurity 188 (CAS CATO-C4X-2120188)
- Gadobutrol Impurity 79 (CAS 105855-71-8)
Recommended Standards
- Fmoc-Pip(Alloc)-OH (CAS 914358-24-0)
- Roxadustat Impurity 69 (CAS 2731734-05-5)
- Fmoc-l-norleucine n-hydroxysuccinimide ester (CAS 201026-08-6)
- Methocarbamol Impurity 9 (CAS CATO-C4X-24449)
- Sugammadex Impurity 63 (CAS CATO-C4X-190663)
- Dacomitinib Impurity 17 (CAS CATO-C4X-208617)
- Clarithromycin EP Impurity F (CAS 128940-83-0)
- 6-Bromo-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylic acid (CAS 1065093-84-6)
- 1-Benzoyl-1,2-dihydroquinoline-2-carbonitrile (CAS 13721-17-0)
- 3-Bromo-5-cyano-4-formylbenzoic acid (CAS 1806062-24-7)
- N-[(5-Methyl-1,2,4-oxadiazol-3-yl)methyl]-ethanamine (CAS 915923-33-0)
- 2-Chloro-N-(4-methoxybenzyl)aniline (CAS 356536-88-4)
- 3-Cyclopropoxy-4-ethyl-N,N-dimethylaniline (CAS 1243468-40-7)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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