Ethyl 8-(4-t-butylphenyl)-8-oxooctanoate CAS 898778-50-2
| CAS No. | 898778-50-2 |
| Molecular Formula | C20H30O3 |
| Molecular Weight | 318.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 8-(4-t-butylphenyl)-8-oxooctanoate.
Ethyl 8-(4-t-butylphenyl)-8-oxooctanoate (CAS 898778-50-2), molecular formula C20H30O3 and molecular weight 318.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 8-(4-t-butylphenyl)-8-oxooctanoate (C20H30O3) 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 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.
As a certified reference material (CRM), Ethyl 8-(4-t-butylphenyl)-8-oxooctanoate 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 | C20H30O3 |
| Molecular Weight | 318.45 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.) | 1987 |
Recommended Standards
- Ethyl 8-(4-butylphenyl)-8-oxooctanoate (CAS 951888-78-1)
- N-(3-(2-Amino-4-methyl-6-oxo-1,6-dihydropyrimidin-5-yl)propyl)-4-methyl-N-phenylbenzenesulfonamide (CAS 984-65-6)
- Ethyl 6-(4-hexylphenyl)-6-oxohexanoate (CAS 898757-30-7)
- Steviol (CAS 471-80-7)
- 1-(2-Chloro-6-fluorobenzyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carbonitrile (CAS 338748-74-6)
- 1-(2,5-Diethylphenyl)-2,2,2-trifluoroethan-1-ol (CAS 1343771-81-2)
- 3-Bromo-4-(2-bromophenyl)butan-2-one (CAS 1247825-43-9)
- (E)-N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(pyridin-4-yl)ethene-1-sulfonamide (CAS 339018-70-1)
- 5-Bromo-2,4-dimethoxybenzene-1,3-disulfonyl dichloride (CAS 1251922-52-7)
- N,N-Diethyl-1,1,1-trifluoromethanesulfonamide (CAS 357-39-1)
- 3-Oxo-3H-spiro[isobenzofuran-1,4'-piperidine]-5-carboxylic acid (CAS 1356386-03-2)
- tert-butyl N-[2-(3-iodo-1-bicyclo[1.1.1]pentanyl)ethyl]carbamate (CAS 2242693-93-0)
- 5,8-Dihydro-5,8-methanonaphtho[2,3-d]-1,3-dioxole (CAS 94706-16-8)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
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