1-(3-(3-Methoxyphenyl)benzo[c]isoxazol-5-yl)ethan-1-one CAS 439094-71-0
| CAS No. | 439094-71-0 |
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(3-(3-Methoxyphenyl)benzo[c]isoxazol-5-yl)ethan-1-one (C16H13NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 267.28 g/mol, it falls into the medium-molecular-weight range. 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).
1-(3-(3-Methoxyphenyl)benzo[c]isoxazol-5-yl)ethan-1-one (CAS 439094-71-0), molecular formula C16H13NO3 and molecular weight 267.28 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), 1-(3-(3-Methoxyphenyl)benzo[c]isoxazol-5-yl)ethan-1-one 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 | C16H13NO3 |
| Molecular Weight | 267.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
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Recommended Standards
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- 1-(2-Phenoxyethyl)indoline-2,3-dione (CAS 332172-76-6)
- 1-(4-Methoxy-phenyl)-1H-indole-2-carboxylic acid (CAS 300365-79-1)
- Isosorbide-13C6 DiNitrate (CAS 1391051-97-0)
- 2-{[(benzyloxy)carbonyl]amino}-2-(2,3-dihydro-1,4-benzodioxin-6-yl)acetic acid (CAS 73101-08-3)
- 6-Methoxy-2-methylbenzothiazole (CAS 2941-72-2)
- 2-Methyl-4-(4-methylbenzenesulfonyl)-4,5-dihydro-1,3,4-benzoxadiazepin-5-one (CAS 865658-77-1)
- Aminohistidine (CAS 14760-71-5)
- 5-Methylpyrimidine-2-sulfonyl fluoride (CAS 35762-75-5)
- 5,5-Dimethylhexan-1-amine (CAS 60996-53-4)
- 2,4,6-Trimethylpyrimidin-5-ol (CAS 71267-12-4)
- DiiSopropyl (2-hydroxynaphthalen-1-yl)phosphonate (CAS 1592980-00-1)
- Dulaglutide (CAS 923950-08-7)
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