1,1'-(4-Chloro-1,3-phenylene)diethanone CAS 128049-22-9
| CAS No. | 128049-22-9 |
| Molecular Formula | C10H9ClO2 |
| Molecular Weight | 196.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1'-(4-Chloro-1,3-phenylene)diethanone (CAS 128049-22-9), a certified reference material (molecular formula C10H9ClO2, MW 196.63 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H9ClO2, 1,1'-(4-Chloro-1,3-phenylene)diethanone 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 196.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H9ClO2 |
| Molecular Weight | 196.63 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 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; 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.) | 1993 |
| Halogen Content | Cl-containing |
Related Chloro Standards
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Recommended Standards
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- 3-((2,6-Dimethylheptan-4-yl)amino)propan-1-ol (CAS 904240-57-9)
- 2-(Pyrimidin-2-yl)pyrimidine-5-carboxylic acid (CAS 933191-25-4)
- 8-Fluoro-4-hydroxy-2H-chromen-2-one (CAS 128789-29-7)
- 3-Amino-1-{4-[(difluoromethyl)sulfanyl]phenyl}thiourea (CAS 721910-08-3)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen [2,3'-bithiophen]-5'-ylboronate (CAS 1402166-52-2)
- (3-Bromo-2-fluoro-6-methylphenyl)methanol (CAS 1540795-62-7)
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