Ethyl 7-oxo-7-(p-tolyl)heptanoate CAS 122115-49-5
| CAS No. | 122115-49-5 |
| Molecular Formula | C16H22O3 |
| Molecular Weight | 262.34 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.
CATO supplies Ethyl 7-oxo-7-(p-tolyl)heptanoate (CAS 122115-49-5), a certified reference material (molecular formula C16H22O3, MW 262.34 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H22O3, Ethyl 7-oxo-7-(p-tolyl)heptanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H22O3 |
| Molecular Weight | 262.34 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Recommended Standards
- 6-Methoxyspiro[chromane-2,1'-cycloheptan]-4-ol (CAS 1171687-27-6)
- Ethyl 7-(2-methylphenyl)-7-oxoheptanoate (CAS 122115-55-3)
- 4-(Non-8-en-1-yloxy)benzoic acid (CAS 115595-30-7)
- Methyl 5-(4-(tert-butyl)phenyl)-5-oxopentanoate (CAS 1267187-80-3)
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- [(7-bromo-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]hydrazine hydrochloride (CAS 926229-75-6)
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- 2-Chloro-5-[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]pyridine (CAS 337920-77-1)
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- 6-Oxa-3-azabicyclo[3.1.1]heptane hydrochloride (CAS 1414958-33-0)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
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