Methylnaltrexone Bromide Impurity 2 CAS CATO-C4X-15212
| CAS No. | CATO-C4X-15212 |
| Molecular Formula | C21H24NO5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Methylnaltrexone Bromide Impurity 2 (CAS CATO-C4X-15212), a pharmacopoeial impurity reference standard (molecular formula C21H24NO5Br, MW 450.33 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Methylnaltrexone Bromide Impurity 2 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 450.33 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.
CATO manufactures Methylnaltrexone Bromide Impurity 2 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 | C21H24NO5 Br |
| Molecular Weight | 450.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Methylnaltrexone Standards
- Methylnaltrexone Bromide Impurity 4 (CAS 1005410-32-1)
- Methylnaltrexone Bromide Impurity 1 (CAS 1027638-96-5)
- Methylnaltrexone Bromide - API Standards (CAS 916055-92-0)
- Methylnaltrexone (CAS 916055-93-1)
- Methylnaltrexone Bromide Impurity 25 (CAS CATO-C4X-147525)
- Methylnaltrexone Bromide Impurity 10 (CAS CATO-C4X-152110)
- Methylnaltrexone Bromide Impurity 11 (CAS CATO-C4X-152111)
- Methylnaltrexone Bromide Impurity 12 (CAS CATO-C4X-152112)
Recommended Standards
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- Methyl 4-bromo-1-methyl-3-(p-tolyl)-1H-pyrazole-5-carboxylate (CAS 1435804-05-9)
- 5-Bromo-1-(pyridin-3-ylmethyl)pyridin-2(1H)-one (CAS 1483271-81-3)
- 1-Phenylpropane-2-sulfonyl chloride (CAS 76653-18-4)
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- 3-Chloro-6-methyl-2-nitro-benzoic acid (CAS 1807146-11-7)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
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