4-Methoxy-3-(1-methylethyl)phenylboronic acid pinacol ester CAS 2121513-08-2
| CAS No. | 2121513-08-2 |
| Molecular Formula | C16H25BO3 |
| Molecular Weight | 276.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Methoxy-3-(1-methylethyl)phenylboronic acid pinacol ester 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.
4-Methoxy-3-(1-methylethyl)phenylboronic acid pinacol ester (CAS 2121513-08-2) is a high-purity analytical reference standard with the molecular formula C16H25BO3 and a molecular weight of 276.18 g/mol.
4-Methoxy-3-(1-methylethyl)phenylboronic acid pinacol ester (C16H25BO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C16H25BO3 |
| Molecular Weight | 276.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Methoxy Standards
- Ethyl 2-(2-methoxy-5-(trifluoromethyl)phenyl)-2-oxoacetate (CAS 1368381-65-0)
- Ethyl 2-(4-methoxy-3-(trifluoromethyl)phenyl)-2-oxoacetate (CAS 1417511-42-2)
- 1-(3-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethanone (CAS 1246560-12-2)
- (E)-2-Methoxy-4-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)phenol (CAS 1618099-61-8)
- 1-(2-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethanone (CAS 1655495-99-0)
- 1-(2-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethanone (CAS 638214-65-0)
- 2-(2-Methoxy-2-oxoethyl)phenylboronic Acid Pinacol Ester (CAS 956229-86-0)
- 2-Methoxy-3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 2121511-84-8)
Recommended Standards
- 4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester (CAS 2121514-05-2)
- 5-(4-Bromothiophen-2-yl)-4-methyl-4h-1,2,4-triazole-3-thiol (CAS 828274-88-0)
- 4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-1,3,2-dioxaborolane (CAS 2121512-73-8)
- 5-(5-Bromothiophen-3-yl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 588687-43-8)
- 2-epi-Salvinorin A (CAS 876169-05-0)
- 5,7-Dichloro-1-indanone (CAS 448193-94-0)
- 2-Methoxy-5-(1-tosylpyrrolidin-2-yl)pyridine (CAS 1352508-64-5)
- 5-Cyclopropoxy-4-ethyl-N-methylpyridin-3-amine (CAS 1243361-58-1)
- 2,2'-Diiodo-9,9'-spirobi[fluorene] (CAS 790674-48-5)
- 1-Chloro-4-(2-thioxobenzo[d]oxazol-3(2H)-yl)but-3-en-2-one (CAS 88235-13-6)
- Ethyl 5-bromo-4-cyano-2-methoxybenzoate (CAS 1807080-90-5)
- 2-((5-Bromo-N-methylthiophene)-2-sulfonamido)-N-cyclopropylacetamide (CAS 923832-95-5)
- 4-Bromo-1H-1,2,3-triazole (CAS 40964-56-5)
- Semaglutide (CAS 910463-68-2（free base）)
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