Choline impurity 9 CAS CATO-C4X-15879
| CAS No. | CATO-C4X-15879 |
| Molecular Formula | C12H24NO4 |
| 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 9 (CAS CATO-C4X-15879) is a certified pharmaceutical impurity reference standard with the molecular formula C12H24NO4Cl and a molecular weight of 281.78 g/mol.
Based on its molecular formula C12H24NO4Cl, Choline impurity 9 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 281.78 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 9 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 | C12H24NO4 Cl |
| Molecular Weight | 281.78 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 | Cl-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
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
- Rizatriptan EP Impurity F (CAS 160194-39-8)
- Landiolol Impurity 137 (CAS CATO-C4X-2621137)
- Enalapril Maleate EP Impurity H (CAS CATO-C4X-13341)
- 3-Chloro-2-ethoxypyridin-4-ol (CAS 2056110-43-9)
- N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-2,4-dinitroaniline (CAS 132316-46-2)
- (R,R)-2-Carbamoylcyclohexanecarboxylic Acid (CAS 488703-59-9)
- 1,2-Bis(trimethylsilyloxy)cyclohexene (CAS 6838-67-1)
- 6-Bromo-4-methyl-2H-chromen-2-one (CAS 65490-12-2)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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