Ethyl 4-(4-chlorophenyl)-2-oxobutanoate CAS 83402-92-0
| CAS No. | 83402-92-0 |
| Molecular Formula | C12H13ClO3 |
| Molecular Weight | 240.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-(4-chlorophenyl)-2-oxobutanoate (CAS 83402-92-0) is a high-purity analytical reference standard with the molecular formula C12H13ClO3 and a molecular weight of 240.68 g/mol.
Based on its molecular formula C12H13ClO3, Ethyl 4-(4-chlorophenyl)-2-oxobutanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 manufactures Ethyl 4-(4-chlorophenyl)-2-oxobutanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H13ClO3 |
| Molecular Weight | 240.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
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Recommended Standards
- Ethyl 4-(3-chlorophenyl)-3-oxobutanoate (CAS 221122-22-1)
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- Ethyl 4-chlorophenylacetoacetate, 97% (CAS 62088-10-2)
- 4-Methyl-5-oxyethyl Thiazol Diphosphate Ammonium Salt (CAS 2606-90-8)
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- Benzoic Acid Isobutyl Ester (CAS 120-50-3)
- Ethyl 3-(5-fluoro-1H-indol-3-yl)propanoate (CAS 221188-30-3)
- 3-Bromo-2-(chloromethyl)pyridine (CAS 122851-69-8)
- 3-(Oxetan-3-ylamino)-2-phenylpropanoic acid (CAS 1526513-65-4)
- 5-(Ethylsulfonyl)-6-phenylpyridazin-3(2H)-one (CAS 1713174-37-8)
- 1-(3-Fluorophenyl)butan-1-amine hydrochloride (CAS 1864074-37-2)
- (4S,5S)-4-amino-5-ethoxydihydrofuran-2(3H)-one (CAS 409369-67-1)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com