(2,3-Dichloro-4-formylphenyl)boronic acid CAS 352535-89-8
| CAS No. | 352535-89-8 |
| Molecular Formula | C7H5BCl2O3 |
| Molecular Weight | 218.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (2,3-Dichloro-4-formylphenyl)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.
(2,3-Dichloro-4-formylphenyl)boronic acid (CAS 352535-89-8), molecular formula C7H5BCl2O3 and molecular weight 218.83 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (2,3-Dichloro-4-formylphenyl)boronic acid (C7H5BCl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 218.83 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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H5BCl2O3 |
| Molecular Weight | 218.83 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- (2,6-Dichloro-3-formylphenyl)boronic acid (CAS 1218790-87-4)
- 2,6-Dichloro-4-formylphenylboronic acid (CAS 1451392-98-5)
- 3,5-Dichloro-4-formylphenylboronic acid (CAS 1451393-36-4)
- (2,4-Dichloro-3-formylphenyl)boronic acid (CAS 480438-53-7)
- 2,5-Dichloro-3-formylphenylboronic acid (CAS 919355-48-9)
- 3,4-Dichloro-2-formylphenylboronic acid (CAS 2121512-56-7)
- (2,4-Dichloro-6-ethylphenyl)boronic acid (CAS 1234009-21-2)
- 1,2-Dichloro-3,4,5,6-Tetrafluorobenzene (CAS 1198-59-0)
Recommended Standards
- (3-chloro-4-chlorocarbonyl-phenyl)boronic acid (CAS 850589-38-7)
- (4-bromo-3-fluorophenyl)-boronic acid 374790-97-3 4-Bromo-3-fluorobenzeneboronic acid 4-Bromo-3-fluorophenylboronic acid (CAS 374790-97-3)
- 3-Bromo-2-fluorophenylboronic Acid (CAS 352535-97-8)
- Dibromonitromethane (CAS 598-91-4)
- 4-Chloro-n-(2-hydroxyethyl)benzamide (CAS 7400-54-6)
- Phenyl L-alaninate (CAS 62056-68-2)
- 4-Iodo-N-(o-tolyl)benzamide (CAS 461040-30-2)
- Tert-Butyl 3-(Aminomethyl)-3-Fluoroazepane-1-Carboxylate (CAS 1784405-02-2)
- 2-Chloro-4-cyclobutoxy-5-fluoropyrimidine (CAS 1511119-05-3)
- 2-[4-(difluoromethoxy)phenyl]propan-2-amine (CAS 306761-19-3)
- 4-Hydrazinyl-2-(3-methoxyphenyl)quinazoline (CAS 1217862-32-2)
- 4,6-Dichloro-5-ethyl-2-methylpyrimidine (CAS 175139-08-9)
- 2-Hydrazineyl-4-methyl-5-(trifluoromethyl)pyridine (CAS 1246471-19-1)
- Autoinducing Peptide I trifluoroacetate salt (CAS 200010-29-3)
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