4,4,5,5-Tetramethyl-2-(1,1,3,3-tetramethyl-2,3-dihydro-1H-inden-5-yl)-1,3,2-dioxaborolane CAS 1312464-73-5
| CAS No. | 1312464-73-5 |
| Molecular Formula | C19H29BO2 |
| Molecular Weight | 300.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,4,5,5-Tetramethyl-2-(1,1,3,3-tetramethyl-2,3-dihydro-1H-inden-5-yl)-1,3,2-dioxaborolane (CAS 1312464-73-5), a certified reference material (molecular formula C19H29BO2, MW 300.24 g/mol) for analytical method development and quality control.
The molecular framework of 4,4,5,5-Tetramethyl-2-(1,1,3,3-tetramethyl-2,3-dihydro-1H-inden-5-yl)-1,3,2-dioxaborolane (C19H29BO2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C19H29BO2 |
| Molecular Weight | 300.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Tetramethyl Standards
- (E)-4,4,5,5-Tetramethyl-2-(4-pentylstyryl)-1,3,2-dioxaborolane (CAS 928645-89-0)
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- ethyl 2-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-thienyl]acetate (CAS 1620318-41-3)
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- 2-(2,3,5,9-Tetramethyl-7-oxo-7h-furo[3,2-g]chromen-6-yl)acetic acid (CAS 664366-08-9)
- 5,5,7,7-Tetramethyl-3-(3-nitrophenyl)-5H,7H-furo[3,4-e][1,2,4]triazine (CAS 59118-28-4)
- 2-Methyl-5-[[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methyl]-1,3,4-oxadiazole (CAS 2096340-21-3)
- 2-Methyl-5-{[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methyl}-1,3,4-oxadiazole (CAS 2096330-21-9)
Recommended Standards
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- 3-Benzoyl-9-oxo-3-azabicyclo[3.3.1]nonane-7-carboxylic acid (CAS 956910-17-1)
- Peptide 432 (CAS CATO-CPTD788432)
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