3,5-Dimethyl-4-hydroxymethylphenylboronic acid pinacol ester CAS 2121514-08-5
| CAS No. | 2121514-08-5 |
| Molecular Formula | C15H23BO3 |
| Molecular Weight | 262.15 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.
3,5-Dimethyl-4-hydroxymethylphenylboronic acid pinacol ester (CAS 2121514-08-5), molecular formula C15H23BO3 and molecular weight 262.15 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, 3,5-Dimethyl-4-hydroxymethylphenylboronic acid pinacol ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 262.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3,5-Dimethyl-4-hydroxymethylphenylboronic 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.
Physical & Chemical Properties
| Molecular Formula | C15H23BO3 |
| Molecular Weight | 262.15 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 Dimethyl Standards
- 2-(4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)phenyl)-2-methylpropan-1-ol (CAS 1467060-49-6)
- 2,5-Dimethyl-4-hydroxymethylphenylboronic acid pinacol ester (CAS 2121514-86-9)
- 3,5-Dimethyl-2-methoxyphenylboronic acid pinacol ester (CAS 2121512-20-5)
- Dimethyl 2-(trifluoromethyl)terephthalate (CAS 102867-06-1)
- Dimethyl 4-(trifluoromethyl)phthalate (CAS 728-47-2)
- Dimethyl 5-(trifluoromethyl)benzene-1,3-dicarboxylate (CAS 868286-79-7)
- Methyl 3-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-4-methylbenzoate (CAS 1221343-13-0)
- 5,5-Dimethyl-2-(4-(oxetan-3-yloxy)phenyl)-1,3,2-dioxaborinane (CAS 1467060-32-7)
Recommended Standards
- 3-Benzyl-5-bromo-4-methylpyridine (CAS 2586127-30-0)
- 3,3’,4,4’,5,5’-Hexafluoro-1,1’-biphenyl (CAS 505058-38-8)
- 3-Bromo-5-(4-methylbenzyl)pyridine (CAS 2586127-49-1)
- 3-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-1-ol (CAS 651030-57-8)
- Ethyl 3-Hydrazinyl-3-oxopropanoate (CAS 30866-24-1)
- 1-Chloro-2-(difluoromethoxy)-3-methylbenzene (CAS 1261567-06-9)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethenylbenzene, 2-ethylhexyl 2-propenoate and 2-propenoic acid (CAS 27306-43-0)
- 7-Iodooxazolo[4,5-c]pyridine (CAS 1823944-01-9)
- (4-Acetylphenyl)trifluoroboranuide; tetrabutylazanium (CAS 411206-77-4)
- 1-(2,4-Dichlorobenzyl)piperidine-4-carboxylic acid (CAS 901920-31-8)
- N-Cyclopropyl-1-(methylsulfonyl)-N-(thiophen-3-ylmethyl)piperidine-4-carboxamide (CAS 1234888-74-4)
- 7-TMCA Impurity 2 (CAS 126437-69-2)
- 1-(Ethylsulfonyl)piperidine-4-carbohydrazide (CAS 832739-82-9)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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