(E)-2-styryl-1,3,2-dioxaborinane CAS 154081-22-8
| CAS No. | 154081-22-8 |
| Molecular Formula | C11H13BO2 |
| Molecular Weight | 188.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-2-styryl-1,3,2-dioxaborinane.
(E)-2-styryl-1,3,2-dioxaborinane (CAS 154081-22-8) is a high-purity analytical reference standard with the molecular formula C11H13BO2 and a molecular weight of 188.03 g/mol.
The molecular framework of (E)-2-styryl-1,3,2-dioxaborinane (C11H13BO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H13BO2 |
| Molecular Weight | 188.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| 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.) | 2001 |
Related E Standards
- 3-Styryl-pyridine (CAS 2633-06-9)
- (E)-5-styryl-1H-pyrazole-4-carbaldehyde (CAS 1159834-02-2)
- 4-Ethyl-2-styryl-4,5-dihydrooxazole (CAS 246240-63-1)
- 5-Styryl-[1,3,4]thiadiazol-2-ylamine (CAS 1049978-62-2)
- (E)-5-Styryl-2H-tetrazole (CAS 220429-71-0)
- 5-Styryl-2H-1,2,3,4-tetraazole (CAS 82701-51-7)
- 5-Styryl-1H-imidazole (CAS 753401-37-5)
- 1-Styryl-2-vinylbenzene (CAS 93371-12-1)
Recommended Standards
- 4-Bromo-2-cyclopropyl-2H-1,2,3-triazole (CAS 1514587-19-9)
- 4-Bromo-1-cyclopropyl-1H-1,2,3-triazole (CAS 1622843-73-5)
- 2-Bromo-6-methylpyrimidin-4-amine (CAS 1416305-91-3)
- 5-Bromo-4-methylpyridazin-3-amine (CAS 1638759-55-3)
- 1-methyl-6-nitro-indolin-2-one (CAS 1374423-01-4)
- (2R,3R)-2,3-dihydroxybutane-1,4-diyl dibenzoate (CAS 176590-77-5)
- N-(3-ethoxybenzyl)-1-(pyridin-3-yl)methanamine (CAS 880804-71-7)
- 1-(2,4-Dihydroxyphenyl)-2-(isopropylthio)ethan-1-one (CAS 1179723-18-2)
- Ethyl 4-hydroxy-5-methoxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylate (CAS 248282-13-5)
- 5-Methylpiperidine-2,4-dione (CAS 118263-96-0)
- CX-6258 (CAS 1353859-00-3)
- 1-Cyclopropyl-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874299-10-2)
- (Z)-4-(Benzo[d][1,3]dioxol-5-ylmethylene)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 132603-41-9)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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