4-(4-tert-Butyl-benzyloxy)-3-ethoxy-benzaldehyde CAS 565168-71-0
| CAS No. | 565168-71-0 |
| Molecular Formula | C20H24O3 |
| Molecular Weight | 312.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(4-tert-Butyl-benzyloxy)-3-ethoxy-benzaldehyde is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(4-tert-Butyl-benzyloxy)-3-ethoxy-benzaldehyde (CAS 565168-71-0), molecular formula C20H24O3 and molecular weight 312.40 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(4-tert-Butyl-benzyloxy)-3-ethoxy-benzaldehyde (C20H24O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 312.40 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C20H24O3 |
| Molecular Weight | 312.40 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Recommended Standards
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- Triphenyl(1-phenylethyl)phosphonium bromide (CAS 30537-09-8)
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- Ethyl 2-(methylthio)-4-(3-oxo-1,4-diazaspiro[5.5]undecan-1-yl)pyrimidine-5-carboxylate (CAS 2170746-95-7)
- 1-Ethyl-4-nitro-1h-pyrazole-3-carboxylic acid (CAS 401906-11-4)
- 5-(Chloromethyl)quinoline-8-thiol hydrochloride (CAS 104614-63-3)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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