Choline impurity 2 CAS CATO-C4X-15872
| CAS No. | CATO-C4X-15872 |
| Molecular Formula | C11H22NO4 |
| 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.
Choline impurity 2 (CAS CATO-C4X-15872) is a certified pharmaceutical impurity reference standard with the molecular formula C11H22NO4I and a molecular weight of 359.20 g/mol.
Based on its molecular formula C11H22NO4I, Choline impurity 2 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 359.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Choline impurity 2 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 | C11H22NO4 I |
| Molecular Weight | 359.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Choline Standards
- 2,4-D Choline salt (CAS 1048373-72-3)
- Choline chloride-1-<SUP>13</SUP>C (CAS 1219388-71-2)
- Choline (47-50% in Water) (CAS 123-41-1)
- Choline Fenofibrate Impurity 13 (CAS 134612-84-3)
- Choline fenofibrate Impurity 23 (CAS 154356-97-5)
- Choline Impurity 5 (CAS 162440-04-2)
- CHOLINE IODIDE (CAS 17773-10-3)
- Choline Fenofibrate Impurity 26 (CAS 1797121-54-0)
Recommended Standards
- Bevantolol Impurity 20 (CAS CATO-C4X-241120)
- Paliperidone Impurity 155 (CAS CATO-C4X-1724155)
- Dapoxetine Impurity 96 (CAS CATO-C4X-143996)
- Zinc dihydrogen phosphate (CAS 13598-37-3)
- 1-Cyclopropyl-7-(3-((ethylamino)methyl)pyrrolidin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 99734-97-1)
- Taltirelin Impurity 2 (CAS 124916-92-3)
- 1-(2-Methanesulfonylethyl)-1h-pyrazole-4-carbaldehyde (CAS 1341130-99-1)
- Daporinad (CAS 201034-75-5)
- Methyl 2,4-dimethyl-1-oxaspiro[2.4]heptane-2-carboxylate (CAS 1558973-38-8)
- Human glucagon CRS (CAS 9007-92-5)
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