4,4,5,5-Tetramethyl-2-(2,5,6,7-tetrahydrooxepin-3-yl)-1,3,2-dioxaborolane CAS 2489456-35-9
| CAS No. | 2489456-35-9 |
| Molecular Formula | C12H21BO3 |
| Molecular Weight | 224.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4,5,5-Tetramethyl-2-(2,5,6,7-tetrahydrooxepin-3-yl)-1,3,2-dioxaborolane 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.
4,4,5,5-Tetramethyl-2-(2,5,6,7-tetrahydrooxepin-3-yl)-1,3,2-dioxaborolane (CAS 2489456-35-9) is a high-purity analytical reference standard with the molecular formula C12H21BO3 and a molecular weight of 224.10 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 4,4,5,5-Tetramethyl-2-(2,5,6,7-tetrahydrooxepin-3-yl)-1,3,2-dioxaborolane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 224.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H21BO3 |
| Molecular Weight | 224.10 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 2000 |
Related Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(4-methyl-3,4-dihydro-2H-pyran-6-yl)-1,3,2-dioxaborolane (CAS 1046811-98-6)
- 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-ol (CAS 1310384-24-7)
- 2-((4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)methyl)cyclopentanone (CAS 134892-21-0)
- 4,4,5,5-Tetramethyl-2-((tetrahydro-4H-pyran-4-ylidene)methyl)-1,3,2-dioxaborolane (CAS 2304634-36-2)
- 4,4,5,5-Tetramethyl-2-(3-methyl-3,6-dihydro-2H-pyran-4-yl)-1,3,2-dioxaborolane (CAS 2244092-89-3)
- 4,4,5,5-tetramethyl-2-(3-oxabicyclo[4.1.0]heptan-6-yl)-1,3,2-dioxaborolane (CAS 2374751-49-0)
- 4,4,5,5-Tetramethyl-2-(thiophen-3-ylmethyl)-1,3,2-dioxaborolane (CAS 1444010-65-4)
- 4,4,5,5-Tetramethyl-2-(thiophen-2-ylmethyl)-1,3,2-dioxaborolane (CAS 1638933-18-2)
Recommended Standards
- 4-(3-Bromopropyl)benzonitrile (CAS 83101-14-8)
- 4-(3-Bromophenyl)butanenitrile (CAS 880158-07-6)
- 4-Bromo-1,5-dimethyl-1H-indole (CAS 610794-16-6)
- 3-Oxocyclohexylboronic Acid Pinacol Ester (CAS 302577-72-6)
- H-D-Phe-Homopro-Arg-pNA · 2 acetate (CAS 386253-60-7)
- pentan-2-yl(pentyl)amine (CAS 1019518-65-0)
- ethyl 2-chloro-4-methylquinoline-3-carboxylate (CAS 251902-62-2)
- 4-Amino-5-bromo-2-(trifluoromethyl)benzonitrile (CAS 155255-45-1)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
- 1-(2-(4-Bromophenyl)-2-oxoethyl)pyridin-1-ium bromide (CAS 17282-37-0)
- 4-((1-Phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)amino)benzoic acid (CAS 333324-93-9)
- Pantoprazole Impurity 3 (CAS 957470-58-5)
- 4-(3-Bromo-4-fluorophenoxy)benzenesulfonamide (CAS 1551728-64-3)
- Fibrinopeptide A (human) (CAS 25422-31-5)
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