Nabumetone Impurity 28 CAS 98386-83-5
| CAS No. | 98386-83-5 |
| Molecular Formula | C15H16O3 |
| Molecular Weight | 244.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Nabumetone Impurity 28 (CAS 98386-83-5) is a certified pharmaceutical impurity reference standard with the molecular formula C15H16O3 and a molecular weight of 244.29 g/mol.
Based on its molecular formula C15H16O3, Nabumetone Impurity 28 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C15H16O3 |
| Molecular Weight | 244.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Nabumetone Standards
- Nabumetone Impurity 14 (CAS CATO-C4X-284814)
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- Parecoxib Impurity 62 (CAS 2304623-36-5)
- CAS CATO-C3D-263214 (CAS CATO-C3D-263214)
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- 2-Butylthiopyrimidine-5-boronic acid (CAS 2096333-75-2)
- 2-Nitro-N-pyridin-2-ylbenzamide (CAS 96656-49-4)
- tert-Butyl (3-(1-hydroxyethyl)oxetan-3-yl)carbamate (CAS 2763905-59-3)
- 1-Bromo-2-methylindolizine (CAS 1538981-60-0)
- trans-2-fluorocyclohexanamine;hydrochloride (CAS 75198-16-2)
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