2-Hydroxy-1,2-di(naphthalen-2-yl)ethan-1-one CAS 42040-68-6
| CAS No. | 42040-68-6 |
| Molecular Formula | C22H16O2 |
| Molecular Weight | 312.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Hydroxy-1,2-di(naphthalen-2-yl)ethan-1-one (CAS 42040-68-6) is a high-purity analytical reference standard with the molecular formula C22H16O2 and a molecular weight of 312.36 g/mol.
Based on its molecular formula C22H16O2, 2-Hydroxy-1,2-di(naphthalen-2-yl)ethan-1-one contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 312.36 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).
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.
Physical & Chemical Properties
| Molecular Formula | C22H16O2 |
| Molecular Weight | 312.36 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
Related Hydroxy Standards
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Recommended Standards
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- Diethyl 2-methylpentanedioate (CAS 18545-83-0)
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- N-(2-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-2-fluorobenzamide (CAS 921851-57-2)
- Tert-butyl (R)-(1-oxo-1-(tetrahydro-2H-pyran-4-yl)propan-2-yl)carbamate (CAS 1428231-85-9)
- 4-fluoro-3-(piperidin-4-yl)benzo[d]isoxazole hydrochloride (CAS 95742-19-1)
- 4-Benzyloxy-2-(trifluoromethyl)benzoic acid (CAS 790695-23-7)
- 1-(2-(Isopentyloxy)-5-methylphenyl)ethanol (CAS 1155038-92-8)
- 3-(3-Amino-1H-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 1823184-32-2)
- 4-{2-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl}-1-methyl-1H-pyrazole (CAS 1863075-50-6)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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