4-Ethoxyphenyl trans-4-butylcyclohexanoate CAS 67589-47-3
| CAS No. | 67589-47-3 |
| Molecular Formula | C19H28O3 |
| Molecular Weight | 304.42 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.
4-Ethoxyphenyl trans-4-butylcyclohexanoate (CAS 67589-47-3), molecular formula C19H28O3 and molecular weight 304.42 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Ethoxyphenyl trans-4-butylcyclohexanoate (C19H28O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 304.42 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4-Ethoxyphenyl trans-4-butylcyclohexanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H28O3 |
| Molecular Weight | 304.42 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.) | 1976 |
Related Ethoxyphenyl Standards
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- N-(4-ethoxyphenyl)-2-((furan-2-ylmethyl)amino)-2-thioxoacetamide (CAS 306732-53-6)
- N-(4-Ethoxyphenyl)-2-iodoacetamide (CAS 17641-13-3)
- N-(3-Ethoxyphenyl)-2-iodoacetamide (CAS 17641-14-4)
- 3-(4-Ethoxyphenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 439107-55-8)
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Recommended Standards
- 4-ANDROSTEN-7α, 17β-DIOL-3-ONE (CAS 62-83-9)
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- 5-(5,5-Dimethyl-1,3-dioxan-2-yl)-4-ethylvalerophenone (CAS 898755-39-0)
- 3-Isopropyl-5-isocyanato-1-phenyl-1H-pyrazole (CAS 1349715-95-2)
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- 2-Bromo-4-chloro-6-(difluoromethyl)-3-(trifluoromethyl)pyridine (CAS 1806933-57-2)
- Aprepitant Impurity 16 (CAS CATO-C4X-114116)
- Amisulpride Impurity 22 (CAS 1823413-49-5)
- 2-(4-(Aminomethyl)piperidin-1-yl)-1-(thiophen-2-yl)ethanone hydrochloride (CAS 1353954-82-1)
- Sipatrigine (CAS 130800-90-7)
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- Ethyl 6-(2,3-dimethoxyphenyl)-6-oxohexanoate (CAS 898758-09-3)
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