3,4-Dichloro-5-methylphenylboronic acid CAS 1772622-45-3
| CAS No. | 1772622-45-3 |
| Molecular Formula | C7H7BCl2O2 |
| Molecular Weight | 204.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 204.85 g/mol gives 3,4-Dichloro-5-methylphenylboronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3,4-Dichloro-5-methylphenylboronic acid (CAS 1772622-45-3), molecular formula C7H7BCl2O2 and molecular weight 204.85 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,4-Dichloro-5-methylphenylboronic acid (C7H7BCl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 204.85 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C7H7BCl2O2 |
| Molecular Weight | 204.85 g/mol |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 2,4-Dichloro-5-methylphenylboronic acid (CAS 1421934-04-4)
- (2,6-Dichloro-4-methylphenyl)boronic acid (CAS 1451391-51-7)
- 4,5-Dichloro-2-methylphenylboronic acid (CAS 1612184-33-4)
- (2,5-Dichloro-4-methylphenyl)boronic acid (CAS 2246725-44-8)
- (3,4-Dichloro-2-methylphenyl)boronic acid (CAS 957035-17-5)
- (3,5-Dichloro-2-methylphenyl)boronic acid (CAS 957120-97-7)
- 2,3-Dichloro-4-methylphenylboronic acid (CAS 352535-95-6)
- 2,3-Dichloro-5-methylphenylboronic acid (CAS 2377606-78-3)
Recommended Standards
- (2,6-Dichlorobenzyl)boronic acid (CAS 1072946-39-4)
- 7-Octenyldimethylchlorosilane (CAS 17196-12-2)
- Chlorodimethylphenylethylsilane (CAS 17146-08-6)
- 2,6-Dichloro-3-methylphenylboronic Acid (CAS 851756-54-2)
- Loxoprofen Related Compound 14 (CAS 621-36-3)
- 7-Hydroxy-3-(2-methoxyphenyl)-4H-chromen-4-one (CAS 63909-40-0)
- 1-(1,2-Butadien-1-Yl)-4-Fluorobenzene (CAS 205108-17-4)
- 1,1',6,6',7,7'-Hexahydroxy-5,5'-diisopropyl-3,3'-dimethyl-[2,2'-binaphthalene]-8,8'-dicarbaldehyde acetate salt (CAS 5453-04-3)
- 2,2,2-Trifluoro-N-methyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)acetamide (CAS 2377608-19-8)
- Gadobutrol Impurity N5 (CAS 112193-75-6)
- 3-Chloro Fenofibric Acid-d6 (CAS 1346603-07-3)
- 2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-phenylacetamide (CAS 93666-41-2)
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-ol (CAS 1638763-87-7)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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