5,5-Dimethyl-2-(2-oxo-2-phenylethyl)cyclohexane-1,3-dione CAS 37456-51-2
| CAS No. | 37456-51-2 |
| Molecular Formula | C16H18O3 |
| Molecular Weight | 258.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5,5-Dimethyl-2-(2-oxo-2-phenylethyl)cyclohexane-1,3-dione (CAS 37456-51-2), molecular formula C16H18O3 and molecular weight 258.31 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H18O3, 5,5-Dimethyl-2-(2-oxo-2-phenylethyl)cyclohexane-1,3-dione 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 258.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5,5-Dimethyl-2-(2-oxo-2-phenylethyl)cyclohexane-1,3-dione 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 | C16H18O3 |
| Molecular Weight | 258.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
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