2-Acetylphenylboronic acid CAS 308103-40-4
| CAS No. | 308103-40-4 |
| Molecular Formula | C8H9BO3 |
| Molecular Weight | 163.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Acetylphenylboronic acid (CAS 308103-40-4), molecular formula C8H9BO3 and molecular weight 163.97 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Acetylphenylboronic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 163.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C8H9BO3 |
| Molecular Weight | 163.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Acetylphenylboronic Standards
Recommended Standards
- 2,3-Dihydrobenzofuran-6-boronic Acid (CAS 763120-44-1)
- 2-Cyclopropylpyrimidine-5-boronic Acid (CAS 893567-15-2)
- 2,3-Dihydrobenzofuran-5-boronic Acid (CAS 227305-69-3)
- 2-Formyl-4-methylphenylboronic acid (CAS 444188-28-7)
- Carbidopa Impurity 5 (CAS 54737-52-9)
- 4-bromo-1-(difluoromethoxy)-2-isopropylbenzene (CAS 1062616-03-8)
- 3-(Aminomethyl)oxetan-3-amine oxalate (CAS 1523606-33-8)
- 1,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)triazole (CAS 1627933-42-9)
- 1-(3,4-Dichlorophenyl)-3-piperidinamine (CAS 1249274-33-6)
- 2-Amino-7-(((1,3-dihydroxypropan-2-yl)oxy)methyl)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboxamide (CAS 127945-71-5)
- Ceftriaxone Impurity 41 (CAS 473843-58-2)
- 2-Chloro-4-(difluoromethyl)-6-iodopyridine (CAS 1805314-51-5)
- Fluticasone Impurity 54 (CAS 4571-51-1)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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