1-(3-Phenylbenzo[c]isoxazol-5-yl)ethanone CAS 57844-94-7
| CAS No. | 57844-94-7 |
| Molecular Formula | C15H11NO2 |
| Molecular Weight | 237.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 1-(3-Phenylbenzo[c]isoxazol-5-yl)ethanone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1-(3-Phenylbenzo[c]isoxazol-5-yl)ethanone (CAS 57844-94-7) is a high-purity analytical reference standard with the molecular formula C15H11NO2 and a molecular weight of 237.25 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H11NO2 |
| Molecular Weight | 237.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1973 |
| Nitrogen Atoms | 1 |
Related Phenylbenzo Standards
- 1-(2-Phenylbenzo[d]oxazol-4-yl)ethanone (CAS 60723-73-1)
- 2-(2-Phenylbenzo[d]oxazol-6-yl)ethanamine (CAS 713068-56-5)
- (2-Phenylbenzo[d]oxazol-5-yl)boronic acid (CAS 866332-17-4)
- 2-Phenylbenzo[d]oxazole-7-carboxylic acid (CAS 131862-24-3)
- 2-Phenylbenzo[d]oxazole-5-carboxylic acid (CAS 21095-64-7)
- 2-Phenylbenzo[d]oxazole-6-carboxylic acid (CAS 594839-90-4)
- 2-(2-Phenylbenzo[d]oxazol-7-yl)acetonitrile (CAS 125421-44-5)
- 6-Methyl-4-phenylbenzo[d]thiazol-2-amine (CAS 331824-72-7)
Recommended Standards
- 1-(3-Methylfuran-2-carbonyl)piperidine-4-carboxylic acid (CAS 926216-30-0)
- 1-(4-(Benzo[d]oxazol-2-yl)phenyl)ethanone (CAS 37069-08-2)
- 1-(3-Methylfuran-2-carbonyl)piperidine-3-carboxylic acid (CAS 926186-81-4)
- 1-(4-Butoxy-3-nitrophenyl)ethan-1-one (CAS 61564-84-9)
- n-(3-Aminopropyl)-2-fluoro-n-methylaniline (CAS 1018650-31-1)
- 3-(1-Pyrrolylmethyl)pyridine (CAS 80866-95-1)
- (4-Ethylphenyl)(3-hydroxypiperidin-1-yl)methanone (CAS 1088176-13-9)
- 5-(Piperidin-1-yl)nicotinic acid (CAS 878742-33-7)
- 1099112-80-7 1-[(4-Fluorobenzyl)sulfonyl]piperidine-4-carboxylic acid MFCD13633379 (CAS 1099112-80-7)
- Ceftizoxime Impurity 13 (CAS 68403-70-3)
- (Methoxymethyl)triphenylphosphonium bromide (CAS 33670-32-5)
- (2E)-3-(3-methoxy-4-methylphenyl)prop-2-enoic acid (CAS 132980-20-2)
- 1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide hydrate (CAS 5470-77-9)
- Bonemarrow-Derived Mesenchymal Stem Cells Affinity Peptide trifluoroacetate salt (CAS 683750-83-6)
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