(E)-2-(2-([1,1'-Biphenyl]-4-yl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 941666-88-2
| CAS No. | 941666-88-2 |
| Molecular Formula | C20H23BO2 |
| Molecular Weight | 306.21 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.
(E)-2-(2-([1,1'-Biphenyl]-4-yl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 941666-88-2), molecular formula C20H23BO2 and molecular weight 306.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (E)-2-(2-([1,1'-Biphenyl]-4-yl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (C20H23BO2) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures (E)-2-(2-([1,1'-Biphenyl]-4-yl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H23BO2 |
| Molecular Weight | 306.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related E Standards
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Recommended Standards
- (3-(3-(4-Ethylpiperazin-1-yl)propoxy)-4-methylphenyl)boronic acid (CAS 1704064-34-5)
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- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (2-(piperidin-1-yl)pyridin-4-yl)boronate (CAS 1402166-06-6)
- (E)-4,4,5,5-Tetramethyl-2-(4-styrylphenyl)-1,3,2-dioxaborolane (CAS 943858-44-4)
- 7-Chloro-2,3-dihydro-[1,4]dioxino[2,3-b]pyridine (CAS 1261365-89-2)
- 5-Bromo-4-chloropyridine-2-carboxylic Acid (CAS 1060802-25-6)
- DIMBOA-4-O-β-D-glucuronide (CAS 23140-98-9)
- 2-(((5-Methylthiophen-2-yl)methyl)amino)ethan-1-ol (CAS 721958-87-8)
- Palbociclib Impurity 72 (CAS 1774898-55-3)
- Cholesteryl heptanoate (CAS 1182-07-6)
- Methyl 5-methoxy-2-(p-tolyl)oxazole-4-carboxylate (CAS 53872-17-6)
- (3-fluoro-4-methoxyphenyl)hydrazine (CAS 339264-51-6)
- 3-Amino-5-(4-methoxyphenyl)-5-methylimidazolidine-2,4-dione (CAS 956738-89-9)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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