cyclopentyl 2-(3-methylphenyl)ethyl ketone CAS 898768-39-3
| CAS No. | 898768-39-3 |
| Molecular Formula | C17H15NO |
| Molecular Weight | 249.31 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.
cyclopentyl 2-(3-methylphenyl)ethyl ketone (CAS 898768-39-3), molecular formula C17H15NO and molecular weight 249.31 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, cyclopentyl 2-(3-methylphenyl)ethyl ketone (C17H15NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 249.31 g/mol, it falls into the medium-molecular-weight range. 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 | C17H15NO |
| Molecular Weight | 249.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- Cis-2-phenyl-3,3a,4,9b-tetrahydrochromeno[4,3-b]pyrrole (CAS 88989-44-0)
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- Ethyl (3S,4R)-rel-1-benzyl-4-hydroxypyrrolidine-3-carboxylate (CAS 849935-75-7)
- Ethyl 2-(4-chloro-1h-pyrazol-1-yl)butanoate (CAS 1005615-91-7)
- 7-Chloro-4-methyl-N-(pyridin-2-ylmethyl)-1,3-benzothiazol-2-amine (CAS 1105191-36-3)
- (2H-pyrazolo[4,3-b]pyridin-6-yl)methanamine oxalate (CAS 2438941-86-5)
- 2-[(5-carbamoylpyridin-2-yl)amino]acetic acid (CAS 1016864-70-2)
- 4-Methoxy-6-(4-methoxyphenethyl)-2H-pyran-2-one (CAS 3155-52-0)
- Ethyl 3-chlorobenzo[b]thiophene-2-carboxylate (CAS 21211-08-5)
- cyclohexylmethanesulfonamide (CAS 4352-59-4)
- Triethylmethylammonium chloride (CAS 10052-47-8)
- 2-{4-[(2,5-dioxoimidazolidin-4-yl)methyl]-1H-1,2,3-triazol-1-yl}acetic acid hydrochloride (CAS 1786226-08-1)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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