(2,3-Dichloro-4-methoxyphenyl)boronic acid CAS 1190219-72-7
| CAS No. | 1190219-72-7 |
| Molecular Formula | C7H7BCl2O3 |
| Molecular Weight | 220.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2,3-Dichloro-4-methoxyphenyl)boronic acid (CAS 1190219-72-7), molecular formula C7H7BCl2O3 and molecular weight 220.85 g/mol, is a CATO reference standard with documented purity and traceability.
(2,3-Dichloro-4-methoxyphenyl)boronic acid (C7H7BCl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, 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.
As a certified reference material (CRM), (2,3-Dichloro-4-methoxyphenyl)boronic 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 | C7H7BCl2O3 |
| Molecular Weight | 220.85 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- (2,4-Dichloro-6-methoxyphenyl)boronic acid (CAS 1221263-05-3)
- 4,5-Dichloro-2-methoxyphenylboronic acid (CAS 1256354-93-4)
- 2,5-Dichloro-4-methoxyphenylboronic acid (CAS 1612184-34-5)
- (3,5-Dichloro-4-methoxyphenyl)boronic acid (CAS 175883-61-1)
- (2,4-Dichloro-3-methoxyphenyl)boronic acid (CAS 944128-90-9)
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- (2,6-Dichloro-3-(hydroxymethyl)phenyl)boronic acid (CAS 851756-55-3)
- (2,6-dichloro-3-methoxyphenyl)boronic acid (CAS 851756-57-5)
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