3-Cyclopentylisoxazol-5(4H)-one CAS 29068-27-7
| CAS No. | 29068-27-7 |
| Molecular Formula | C8H11NO2 |
| Molecular Weight | 153.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H11NO2, 3-Cyclopentylisoxazol-5(4H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 153.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
3-Cyclopentylisoxazol-5(4H)-one (CAS 29068-27-7) is a high-purity analytical reference standard with the molecular formula C8H11NO2 and a molecular weight of 153.18 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.
As a certified reference material (CRM), 3-Cyclopentylisoxazol-5(4H)-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 | C8H11NO2 |
| Molecular Weight | 153.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Cyclopentylisoxazol Standards
Recommended Standards
- 3-endo-Aminobicyclo[2.2.1]hept-5-ene-2-carboxylic acid (CAS 88330-29-4)
- 3-Butylisoxazole-5-carbaldehyde (CAS 556782-69-5)
- 3-Ethoxy-6-methylpyridazin-4-amine (CAS 28682-77-1)
- 3-Azabicyclo[3.3.1]nonane-2,4-dione (CAS 4355-17-3)
- 5-Bromo-2-nitroisonicotinic Acid (CAS 1356412-82-2)
- (1-(Trifluoromethyl)-2-oxabicyclo[2.1.1]hexan-4-yl)methanamine hydrochloride (CAS 2624134-77-4)
- 2-(7-Methoxybenzo[d]isoxazol-3-yl)acetic acid (CAS 33026-03-8)
- Deracoxib (CAS 169590-41-4)
- [(3β)-Cholesta-5,24-dien-3-yloxy](1,1-dimethylethyl)dimethylsilane (CAS 220150-72-1)
- 5-(2-Isopropyl-6-methylphenyl)-3,4-dimethylisoxazole (CAS 61314-47-4)
- 1-(2-chloropyridin-4-yl)propan-2-one (CAS 790706-85-3)
- 4-Hydroxy-3,4-dimethylpentanoic acid (CAS 802283-37-0)
- 1-(3-methoxypyridin-2-yl)ethan-1-one (CAS 379227-03-9)
- Palmitoyl Pentapeptide-4 (CAS 214047-00-4)
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