Dequalinium impurity 19 CAS CATO-C4X-193619
| CAS No. | CATO-C4X-193619 |
| Molecular Formula | C20H31N2O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 350.93 g/mol gives Dequalinium impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dequalinium impurity 19 (CAS CATO-C4X-193619) is a certified pharmaceutical impurity reference standard with the molecular formula C20H31N2OCl and a molecular weight of 350.93 g/mol.
Based on its molecular formula C20H31N2OCl, Dequalinium impurity 19 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 350.93 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures Dequalinium impurity 19 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 | C20H31N2O Cl |
| Molecular Weight | 350.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dequalinium Standards
- Dequalinium 2*Chloride x*Hydrate (CAS 1255077-34-9)
- Dequalinium Impurity 15 (CAS 15821-13-3)
- Dequalinium Impurity 4 (CAS 16355-92-3)
- Dequalinium EP Impurity C trichloride (CAS 171980-50-0)
- Dequalinium Chloride EP Impurity B chloride (CAS 171980-52-2)
- Dequalinium Impurity 7 (CAS 19056-26-9)
- Dequalinium iodide (CAS 2019-42-3)
- Dequalinium impurity 18 (CAS 2377370-96-0)
Recommended Standards
- Iopamidol EP Impurity F (CAS 1869069-71-5)
- Alfacalcidol impurity 9 (CAS CATO-C4X-13939)
- WX390 Impurity 3 (CAS CATO-C4X-34313)
- 1-Methoxy-N-methyl-7-nitroacridin-9-amine (CAS 61299-56-7)
- 2-(((tert-Butoxycarbonyl)amino)methyl)pyrimidine-5-carboxylic acid (CAS 1240594-58-4)
- Tert-butyl (azetidin-3-ylmethyl)(ethyl)carbamate (CAS 1260675-44-2)
- 4-(Bromomethyl)furo[2,3-b]pyridine (CAS 2386659-03-4)
- N4-ethyl-N6-(4-(methylsulfonyl)phenyl)pyrimidine-4,5,6-triamine (CAS 1206970-60-6)
- dipropyl sulfate (CAS 598-05-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com