Ethyl 2-acetyl-5,5-dichloro-4-methylpent-4-enoate CAS 40526-96-3
| CAS No. | 40526-96-3 |
| Molecular Formula | C10H14Cl2O3 |
| Molecular Weight | 253.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 2-acetyl-5,5-dichloro-4-methylpent-4-enoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Ethyl 2-acetyl-5,5-dichloro-4-methylpent-4-enoate (CAS 40526-96-3) is a high-purity analytical reference standard with the molecular formula C10H14Cl2O3 and a molecular weight of 253.12 g/mol.
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 | C10H14Cl2O3 |
| Molecular Weight | 253.12 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
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