Ethyl 2,6-dichlorobenzoate CAS 81055-73-4
| CAS No. | 81055-73-4 |
| Molecular Formula | C9H8Cl2O2 |
| Molecular Weight | 219.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 2,6-dichlorobenzoate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 2,6-dichlorobenzoate (CAS 81055-73-4), molecular formula C9H8Cl2O2 and molecular weight 219.06 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 2,6-dichlorobenzoate (C9H8Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H8Cl2O2 |
| Molecular Weight | 219.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
Related Ethyl Standards
- Ethyl 2,4-dichlorobenzoate (CAS 56882-52-1)
- Ethyl 2,5-dichlorobenzoate (CAS 35112-27-7)
- Ethyl 3,4-dichlorobenzoate (CAS 28394-58-3)
- Ethyl 3,5-Dichlorobenzoate (CAS 91085-56-2)
- Methyl 2,6-dichlorobenzoate (CAS 14920-87-7)
- Methyl 2,3-dichlorobenzoate (CAS 2905-54-6)
- Methyl 2,4-Dichlorobenzoate (CAS 35112-28-8)
- Methyl 3,4-Dichlorobenzoate (CAS 2905-68-2)
Recommended Standards
- 5-Chloro-7-(chloromethyl)-2,3-dihydro-1,4-benzodioxine (CAS 853574-37-5)
- Lamotrigine Impurity 7 (CAS 31273-66-2)
- 5-Bromothiophene-2,3-dicarbaldehyde (CAS 37815-80-8)
- Methyl 2-(2,5-Dichlorophenyl)acetate (CAS 96129-66-7)
- 1,5-Bis(chloromethyl)naphthalene (CAS 1733-76-2)
- 3-Amino-5-chloropyrazine-2-carboxamide (CAS 1823889-69-5)
- 1-(3-Methoxybenzyl)-1h-1,2,3-triazol-4-amine (CAS 1538954-86-7)
- 2-((4-Methyl-2-oxo-2H-chromen-7-yl)oxy)acetyl chloride (CAS 91454-65-8)
- Fmoc-D-Lys(Fmoc)-OH (CAS 75932-02-4)
- 3-Cyclopropoxy-5-(trifluoromethyl)picolinamide (CAS 1243327-05-0)
- 6-Chloro-N-(2-cyanoethyl)-N-phenylnicotinamide (CAS 1019354-92-7)
- Peficitinib Impurity 4 (CAS 944118-26-7)
- O-Desmethyl Angolensin (CAS 21255-69-6)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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