Arbidol Impurity 19 CAS CATO-C4X-112919
| CAS No. | CATO-C4X-112919 |
| Molecular Formula | C16H20Br2N2O3 |
| Molecular Weight | 448.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Arbidol Impurity 19 (CAS CATO-C4X-112919) is a certified pharmaceutical impurity reference standard with the molecular formula C16H20Br2N2O3 and a molecular weight of 448.15 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Arbidol Impurity 19 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 448.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), Arbidol Impurity 19 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 | C16H20Br2N2O3 |
| Molecular Weight | 448.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Arbidol Standards
- Arbidol Impurity 28 (CAS CATO-C4X-112928)
- Arbidol Impurity 35 (CAS CATO-C4X-112935)
- Arbidol Impurity 31 (CAS CATO-C4X-112931)
- Arbidol impurity 44 (CAS CATO-C4X-112944)
- Arbidol Impurity 22 (CAS CATO-C4X-112922)
- Arbidol Impurity 32 (CAS CATO-C4X-112932)
- Arbidol Impurity 24 (CAS CATO-C4X-112924)
- Arbidol impurity 45 (CAS CATO-C4X-112945)
Recommended Standards
- 4-(4-(6,8-Dibromoquinolin-2-yl)phenyl)morpholine (CAS 861210-53-9)
- 9-(3-Bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-9H-carbazole (CAS 2121512-10-3)
- (((4,5-Dibromo-1,2-phenylene)bis(oxy))bis(methylene))dibenzene (CAS 206995-42-8)
- (E)-1-(2,4-dichlorobenzyl)-2-(2,4-dichlorostyryl)-1H-benzo[d]imidazole (CAS 338771-83-8)
- Rosuvastatin Impurity 121 (CAS 1714147-51-9)
- Olmesartan Impurity 72 (CAS 95579-71-8)
- Urapidil Impurity 40 (CAS 6328-48-9)
- 2-Fluoro-5-nitrobenzene-1,4-diamine (CAS 134514-27-5)
- Ethyl 7-methyl-4-oxo-1,4-dihydroquinoline-2-carboxylate (CAS 929973-75-1)
- N-((1-(2-Chloroacetyl)piperidin-4-yl)methyl)-N-ethylacetamide (CAS 1353983-09-1)
- 1-(3-methoxypyridin-2-yl)piperazine (CAS 80827-67-4)
- 4-(2-Phenylbutanoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326813-81-3)
- N',2-bis(3-chloro-5-(trifluoromethyl)pyridin-2-yl)acetohydrazide (CAS 383147-68-0)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
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