5-(Dichloromethyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole CAS 905107-54-2
| CAS No. | 905107-54-2 |
| Molecular Formula | C9H5Cl2N3O3 |
| Molecular Weight | 274.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H5Cl2N3O3, 5-(Dichloromethyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole contains a nitrogen-containing heterocyclic scaffold, 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 274.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-(Dichloromethyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole (CAS 905107-54-2), molecular formula C9H5Cl2N3O3 and molecular weight 274.06 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-(Dichloromethyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole 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 | C9H5Cl2N3O3 |
| Molecular Weight | 274.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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, ethanol, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichloromethyl Standards
- 5-(Dichloromethyl)-3-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 905107-65-5)
- 1-(Dichloromethyl)-2-(trichloromethyl)benzene (CAS 2741-57-3)
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- 2-(Dichloromethyl)-7-methyl-3-nitroimidazo[1,2-a]pyridine (CAS 1313712-28-5)
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Recommended Standards
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- Metronidazole Impurity 18 (CAS 113385-77-6)
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