1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[4-(phenylmethoxy)-3-(trifluoromethoxy)phenyl]- CAS 1257078-69-5
| CAS No. | 1257078-69-5 |
| Molecular Formula | C20H22BF3O4 |
| Molecular Weight | 394.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[4-(phenylmethoxy)-3-(trifluoromethoxy)phenyl]- (C20H22BF3O4) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[4-(phenylmethoxy)-3-(trifluoromethoxy)phenyl]- (CAS 1257078-69-5) is a high-purity analytical reference standard with the molecular formula C20H22BF3O4 and a molecular weight of 394.19 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[4-(phenylmethoxy)-3-(trifluoromethoxy)phenyl]- 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 | C20H22BF3O4 |
| Molecular Weight | 394.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Dioxaborolane Standards
- 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[4-(methylsulfonyl)-2-(phenylmethoxy)phenyl]- (CAS 2890194-37-1)
- 1,3,2-Dioxaborolane, 2,2′-(2,5-selenophenediyl)bis[4,4,5,5-tetramethyl- (CAS 1611991-43-5)
- 1,3,2-Dioxaborolane, 2-[2,3-dihydro-7-(methoxymethoxy)-1-methyl-1H-benz[e]inden-9-yl]-4,4,5,5-tetramethyl- (CAS 2918266-83-6)
- 1,3,2-Dioxaborolane, 2-[2-[(4-methoxyphenyl)methoxy]-5-methylphenyl]-4,4,5,5-tetramethyl- (CAS 2890194-40-6)
- 1,3,2-DIOXABOROLANE, 2-(4-IODOPHENYL)-4,4,5,5-TETRAMETHYL- 2-(4-IODOPHENYL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)IODOBENZENE 4-IODOBENZENEBORONIC ACID PINACOL ESTER 4-IODOPHENYLBORONIC ACID PINACOL ESTER 73852-88-7 BC001208 (CAS 73852-88-7)
- 1,3,2-Dioxaborolane, 2-(9,9-dimethyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl- (CAS 1365692-79-0)
- 1,3,2-DIoxaborolane, D-mannitol deriv. (CAS 59184-36-0)
- 1,3,2-DIoxaborolane,?D-glucitol deriv. (CAS 74779-72-9)
Recommended Standards
- Pomalidomide-amido-C1-Br (CAS 2351106-38-0)
- (4-Fluorophenyl)(5-(4-iodophenyl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1707585-73-6)
- Diethyl 2-(3-fluoro-4-iodophenyl)-2-methylmalonate (CAS 749917-24-6)
- 4-Benzyloxy-2-(trifluoromethoxy)phenylboronic acid pinacol ester (CAS 2121511-68-8)
- 3-(3-Methyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)aniline (CAS 764710-30-7)
- 3-(oxolan-3-yl)-1H-pyrazole-4-carboxylic acid (CAS 1603041-23-1)
- Resocortol (CAS 76675-97-3)
- 3-((4-Methoxyphenyl)amino)-1-phenyl-1H-pyrazol-5(4H)-one (CAS 7186-67-6)
- 3,6-Dihydro-2H-pyran-4-carbaldehyde (CAS 97346-30-0)
- 5-Hydroxyuridine (CAS 957-77-7)
- 4-Pentylbenzaldehyde (CAS 6853-57-2)
- 6-Amino-2-(trifluoromethyl)pyridine-3-carbonitrile (CAS 1233243-98-5)
- Olmesartan EP impurity D (CAS 1020157-01-0)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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