2,5-Dichloro-3-(1,3-dioxolan-2-yl)benzophenone CAS 898759-55-2
| CAS No. | 898759-55-2 |
| Molecular Formula | C16H12Cl2O3 |
| Molecular Weight | 323.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,5-Dichloro-3-(1,3-dioxolan-2-yl)benzophenone (CAS 898759-55-2), molecular formula C16H12Cl2O3 and molecular weight 323.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system, 2,5-Dichloro-3-(1,3-dioxolan-2-yl)benzophenone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 323.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H12Cl2O3 |
| Molecular Weight | 323.17 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 |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 2-[2-(3,4-Dichloro-phenyl)-vinyl]-6-hydroxy-benzoic acid methyl ester (CAS 1171921-85-9)
- 2,3-Dichloro-3-(1,3-dioxolan-2-yl)benzophenone (CAS 898759-49-4)
- 2,3-Dichloro-4-(1,3-dioxolan-2-yl)benzophenone (CAS 898760-66-2)
- 2,5-Dichloro-4-(1,3-dioxolan-2-yl)benzophenone (CAS 898760-70-8)
- 4,5-dichloro-1-{2-[(4-fluorophenyl)sulphonyl]ethyl}-1H-imidazole (CAS 662138-57-0)
- 4,5-Dichloro-3,6-dihydroxy-10,10-dimethyl-9(10H)-anthracenone (CAS 2304636-59-5)
- 2-(4,7-Dichloro-2-(4-fluorophenyl)-1H-indol-3-yl)ethanamine (CAS 881040-37-5)
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Recommended Standards
- 2,4-Bis(4-chlorophenyl)-4-oxobutanoic acid (CAS 344281-05-6)
- 2-[(5-bromo-1,3-thiazol-2-yl)methyl]-2,3-dihydro-1H-isoindole-1,3-dione (CAS 2060008-44-6)
- 2-Chloro-1-[3-(4-chlorophenyl)-5-(furan-2-yl)-4,5-dihydro-1h-pyrazol-1-yl]ethan-1-one (CAS 380196-88-3)
- 2-(3-Chlorophenyl)-4-(4-chlorophenyl)-4-oxobutanoic acid (CAS 344280-32-6)
- 3-(2,2-Difluoroethoxy)benzonitrile (CAS 1178425-73-4)
- N,N-dimethyl-2-(5-methyl-3-nitro-1H-pyrazol-1-yl)acetamide (CAS 1260379-37-0)
- 4-(2-Amino-6-chloropyrimidin-4-yl)butanoic acid (CAS 688782-59-4)
- 1-(Benzyloxy)-3-nitro-5-(trifluoromethoxy)benzene (CAS 1881329-27-6)
- N-(2,6-Dihydroxypyrimidin-4-yl)-1H-1,2,4-triazole-3-carboxamide (CAS 709018-26-8)
- Olopatadine Impurity 51 (CAS 113806-01-2)
- (R)-4-Aminoisothiazolidin-3-one 1,1-dioxide (CAS 231944-71-1)
- (3-Trifluoromethyl-1H-pyrazol-1-yl)methanol (CAS 860807-19-8)
- 8-Methyl-2-(pyridin-3-yl)quinoline-4-carboxylic acid (CAS 107027-39-4)
- Cycloaspeptide D (CAS 691363-62-9)
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