Memantine Impurity 61 CAS 111035-07-5
| CAS No. | 111035-07-5 |
| Molecular Formula | C11H16Br2 |
| Molecular Weight | 308.05 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Memantine Impurity 61 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.
As a process- or degradation-related impurity, Memantine Impurity 61 (CAS 111035-07-5, C11H16Br2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Memantine Impurity 61 (C11H16Br2) is characterized by bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C11H16Br2 |
| Molecular Weight | 308.05 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
Related Memantine Standards
- Memantine impurity 57 (CAS CATO-C4X-105857)
- Memantine Dedimethyl Dibromo (CAS 1797133-04-0)
- Memantine Impurity 63 (CAS 875211-09-9)
- Memantine Impurity 66 (CAS CATO-C4X-105866)
- Memantine Glycine tert-Butyl Ester (CAS 1537550-23-4)
- Memantine impurity 58 (CAS 49764-18-3)
- Memantine Impurity 62 (CAS 14931-70-5)
- Memantine Impurity 64 (CAS 2123482-13-1)
Recommended Standards
- N-(7-bromoimidazo[1,2-a]pyridin-2-yl)-2,2,2-trifluoroacetamide (CAS 865604-32-6)
- Methyl 2-hydroxy-5-iodo-4-methoxybenzoate (CAS 1131587-46-6)
- N-(6-Bromoimidazo[1,2-a]pyridin-2-yl)-2,2,2-trifluoroacetamide (CAS 504413-35-8)
- Methyl 4-hydroxy-5-iodo-2-methoxybenzoate (CAS 1131587-51-3)
- Tolvaptan Impurity 45 (CAS 2458812-60-5)
- Dapagliflozin Impurity 203 (CAS 2133407-77-7)
- Estradiol Valerate EP Impurity J (CAS CATO-C4X-28428)
- 4-Chloro-5-fluoroisophthalic acid (CAS 1427081-51-3)
- 2-(Pyridine-4-carbonyl)butanenitrile (CAS 1156898-12-2)
- Ethyl N-(tert-butoxycarbonyl)-3-iodophenylalaninate (CAS 1922842-97-4)
- 1-((3-Methylcyclobutyl)methyl)-1H-pyrazole-4-carboxylic acid (CAS 1936701-06-2)
- 4-[[11-[(1-Oxo-2-propen-1-yl)oxy]undecyl]oxy]benzoic acid 4-[[[trans-4-(hexyloxy)cyclohexyl]carbonyl]oxy]phenyl ester (CAS 852056-56-5)
- Etrasimod Impurity 53 (CAS CATO-C4X-321453)
- Tyr-Proinsulin C-Peptide (55-89) (human) (CAS 139532-11-9)
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