4-Ethylphenyl 2-(4-bromo-2-methylphenoxy)acetate CAS 496033-85-3
| CAS No. | 496033-85-3 |
| Molecular Formula | C17H17BrO3 |
| Molecular Weight | 349.22 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 4-Ethylphenyl 2-(4-bromo-2-methylphenoxy)acetate (CAS 496033-85-3), a certified reference material (molecular formula C17H17BrO3, MW 349.22 g/mol) for analytical method development and quality control.
Structurally, 4-Ethylphenyl 2-(4-bromo-2-methylphenoxy)acetate (C17H17BrO3) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. 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 349.22 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H17BrO3 |
| Molecular Weight | 349.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Ethylphenyl Standards
- 5-(4-Ethylphenyl)-7-(2-methoxyphenyl)-4,5,6,7-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 575466-56-7)
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- N-(4-Ethylphenyl)-3-(2-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-69-7)
- N-(4-Ethylphenyl)-3-(3-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-39-1)
Recommended Standards
- 3-Bromo-5-ethoxy-4-((3-methylbenzyl)oxy)benzaldehyde (CAS 428472-87-1)
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- 3-Bromo-5-ethoxy-4-((2-methylbenzyl)oxy)benzaldehyde (CAS 361369-07-5)
- 5-Bromo-2,3-diphenylbenzofuran (CAS 55082-66-1)
- (2S)-3-(1,3-Benzoxazol-2-ylsulfanyl)-1,1,1-trifluoropropan-2-ol (CAS 477713-88-5)
- 1,7-Dimethyl-8-(methylsulfonyl)-1H-purine-2,6(3H,7H)-dione (CAS 2093389-34-3)
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- 3-(pyridin-3-yl)prop-2-enamide (CAS 1126-73-4)
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- 3-(2,3,4,5,6-pentafluorophenoxy)aniline hydrochloride (CAS 331632-58-7)
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- Semaglutide-d5 (CAS CATO-C4X-2226153)
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