2-(2,3-Dichlorophenyl)-2-oxoacetic acid CAS 93942-57-5
| CAS No. | 93942-57-5 |
| Molecular Formula | C14H8Cl2O3 |
| Molecular Weight | 295.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(2,3-Dichlorophenyl)-2-oxoacetic acid (C14H8Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 295.12 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-(2,3-Dichlorophenyl)-2-oxoacetic acid (CAS 93942-57-5), molecular formula C14H8Cl2O3 and molecular weight 295.12 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-(2,3-Dichlorophenyl)-2-oxoacetic acid 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 | C14H8Cl2O3 |
| Molecular Weight | 295.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
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- Δ6-Tetrahydrocannabinol-7-carboxyl Acetate (CAS 121929-01-9)
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- tert-Butyl endo-3-amino-9-azabicyclo[3.3.1]nonane-9-carboxylate (CAS 1887167-87-4)
- o-(Pentafluorobenzyloxycarbonyl)benzoyl Chloride (CAS 1262207-98-6)
- 2-(2-(Tert-butyl)-4-methyloxazol-5-yl)acetic acid (CAS 1267704-35-7)
- 6-Hydroxy-N1,N1-dimethylphthalamide (CAS 1243370-95-7)
- Liraglutide Impurity 15 TFA Salt (CAS CATO-C4X-199215)
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