4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-1,3,2-dioxaborolane CAS 2121512-73-8
| CAS No. | 2121512-73-8 |
| Molecular Formula | C16H25BO3 |
| Molecular Weight | 276.18 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.
4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-1,3,2-dioxaborolane (CAS 2121512-73-8) is a high-purity analytical reference standard with the molecular formula C16H25BO3 and a molecular weight of 276.18 g/mol.
4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-1,3,2-dioxaborolane (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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-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.
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 Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(3-methyl-5-propoxyphenyl)-1,3,2-dioxaborolane (CAS 1218789-73-1)
- 2-Methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-1-ol (CAS 1256360-30-1)
- 2-Methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-2-ol (CAS 1310707-20-0)
- 4,4,5,5-Tetramethyl-2-[3-(2-methylpropoxy)phenyl]-1,3,2-dioxaborolane (CAS 1338916-31-6)
- 4,4,5,5-Tetramethyl-2-(2-methyl-4-propoxyphenyl)-1,3,2-dioxaborolane (CAS 1688702-80-8)
- N-((5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl)propan-2-amine (CAS 919347-30-1)
- 4,4,5,5-Tetramethyl-2-(1-(4-(methylthio)phenyl)vinyl)-1,3,2-dioxaborolane (CAS 2559765-21-6)
- 4,4,5,5-Tetramethyl-2-(thiochroman-8-yl)-1,3,2-dioxaborolane (CAS 2788905-78-0)
Recommended Standards
- 4-(tert-Butyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-21-8)
- 4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester (CAS 2121514-05-2)
- 4-(tert-Butoxy)phenylboronic Acid Pinacol Ester (CAS 938063-51-5)
- 4-Methoxy-3-(1-methylethyl)phenylboronic acid pinacol ester (CAS 2121513-08-2)
- (E)-(Benzyloxy)[(5-bromo-1H-indol-3-yl)methylidene]amine (CAS 866155-77-3)
- Lithium 1-ethyl-1H-1,2,4-triazole-5-carboxylate (CAS 2247107-72-6)
- H-Gly-Pro-Gly-Gly-OH (H-3625.0250) (CAS 13054-03-0)
- (1-((Tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-4-yl)methanamine (CAS 1342584-81-9)
- 5-(4-Aminophenoxy)-2-((tetrahydrofuran-2-yl)methyl)isoindoline-1,3-dione (CAS 444149-14-8)
- 4-Amino-3-(4-fluoro-phenyl)-butyric AcidDISCONTINUED. Please see A608650. (CAS 52237-19-1)
- lithium(1+) ion 1,3-dimethyl-2-oxopyrrolidine-3-carboxylate (CAS 2031259-32-0)
- 2-(4-Ethoxy-2,6-dimethylphenyl)ethanol (CAS 1378675-56-9)
- 1-(2-(Naphthalen-1-yloxy)ethyl)piperazine (CAS 56229-96-0)
- D-[Thr]5-Semaglutide (CAS CATO-C4X-2226245)
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