3-(2,6-Dichlorophenyl)-N-(6-methoxypyridin-3-yl)-5-methylisoxazole-4-carboxamide CAS 883043-28-5
| CAS No. | 883043-28-5 |
| Molecular Formula | C17H13Cl2N3O3 |
| Molecular Weight | 378.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(2,6-Dichlorophenyl)-N-(6-methoxypyridin-3-yl)-5-methylisoxazole-4-carboxamide 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.
3-(2,6-Dichlorophenyl)-N-(6-methoxypyridin-3-yl)-5-methylisoxazole-4-carboxamide (CAS 883043-28-5), molecular formula C17H13Cl2N3O3 and molecular weight 378.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H13Cl2N3O3, 3-(2,6-Dichlorophenyl)-N-(6-methoxypyridin-3-yl)-5-methylisoxazole-4-carboxamide 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 378.21 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.
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.
Physical & Chemical Properties
| Molecular Formula | C17H13Cl2N3O3 |
| Molecular Weight | 378.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 3-(2-(2,4-Dichlorophenoxy)propionylhydrazidyl)-2-oxoindoline (CAS 356106-53-1)
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- 2-(6,8-Dichloro-4-oxoquinazolin-3(4H)-yl)-N-(3-methoxyphenyl)acetamide (CAS 618443-75-7)
- 4-((4-Bromophenyl)thio)-N-ethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 339010-88-7)
- 7-bromothieno[3,2-c]pyridin-4-ol (CAS 29079-94-5)
- tert-butyl trans-3-amino-2-methyl-azetidine-1-carboxylate (CAS 2416994-72-2)
- N,N-Bis(4-fluorobenzyl)propane-1,3-diamine (CAS 1242902-13-1)
- (E)-(4-Chlorophenyl)(2-furyl)methanone oxime (CAS 91182-78-4)
- 5-Bromooxazole hydrochloride (CAS 1955557-64-8)
- 3-Oxo-1-(pyridin-2-yldisulfanyl)-7,10,13,16,19,22-hexaoxa-4-azapentacosan-25-oic acid (CAS 1818294-33-5)
- (3-Fluoro-4-nitro-benzyl)-carbamic acid tert-butyl ester (CAS 1196157-39-7)
- 2-((3,4-Dichlorobenzyl)thio)-5-methoxy-N-methylpyrimidin-4-amine (CAS 338954-52-2)
- N-(2-cyanoethyl)-N-((5-formylfuran-2-yl)methyl)methanesulfonamide (CAS 496960-86-2)
- Gastrin Tetrapeptide (CAS 1947-37-1)
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