2-Methoxy-6-(2-naphthalen-1-yl-ethyl)-benzoic acid CAS 1171924-00-7
| CAS No. | 1171924-00-7 |
| Molecular Formula | C20H18O3 |
| Molecular Weight | 306.36 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.
2-Methoxy-6-(2-naphthalen-1-yl-ethyl)-benzoic acid (CAS 1171924-00-7), molecular formula C20H18O3 and molecular weight 306.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Methoxy-6-(2-naphthalen-1-yl-ethyl)-benzoic acid (C20H18O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C20H18O3 |
| Molecular Weight | 306.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
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Recommended Standards
- 2-Hydroxy-6-(2-naphthalen-1-yl-ethyl)-benzoic acid methyl ester (CAS 1171921-82-6)
- Ethyl 2-(4-(ethoxycarbonyl)piperidin-1-yl)nicotinate (CAS 1185291-71-7)
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