(S)-2-Methoxy-5-(1-phenylallyl)cyclohexa-2,5-diene-1,4-dione CAS 2543-95-5
| CAS No. | 2543-95-5 |
| Molecular Formula | C16H14O3 |
| Molecular Weight | 254.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-2-Methoxy-5-(1-phenylallyl)cyclohexa-2,5-diene-1,4-dione (CAS 2543-95-5) is a high-purity analytical reference standard with the molecular formula C16H14O3 and a molecular weight of 254.28 g/mol.
Based on its molecular formula C16H14O3, (S)-2-Methoxy-5-(1-phenylallyl)cyclohexa-2,5-diene-1,4-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 254.28 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).
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 | C16H14O3 |
| Molecular Weight | 254.28 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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Recommended Standards
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- 7-Amino-1-cyclopropyl-6-fluoro-5-(hydroxymethyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 149602-60-8)
- (S)-3-(((9H-Fluoren-9-yl)methyl)thio)-2-aminopropanoic acid (CAS 257288-48-5)
- 3-(difluoromethyl)-2H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine hydrochloride (CAS 1864015-17-7)
- 3-(1-benzylpiperidin-4-yl)-3,4-dihydroquinazolin-2-amine (CAS 337910-17-5)
- Ethyl 5-bromo-2-(4-fluorophenyl)-6-nitrobenzofuran-3-carboxylate (CAS 1333340-14-9)
- Semaglutide impurity 29 (CAS 1188328-22-4)
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