(E)-2-(2-Bromostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 581802-24-6
| CAS No. | 581802-24-6 |
| Molecular Formula | C14H18BBrO2 |
| Molecular Weight | 309.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (E)-2-(2-Bromostyryl)-4,4,5,5-tetramethyl-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.
CATO supplies (E)-2-(2-Bromostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 581802-24-6), a certified reference material (molecular formula C14H18BBrO2, MW 309.01 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H18BBrO2, (E)-2-(2-Bromostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 309.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C14H18BBrO2 |
| Molecular Weight | 309.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
Related E Standards
- (E)-2-(4-Bromostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1242770-51-9)
- (E)-2-(3-Bromostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1253943-66-6)
- 5-(4-Bromostyryl)-3-methyl-4-nitroisoxazole (CAS 117504-15-1)
- (E)-2-(2-Bromostyryl)quinolin-8-ol (CAS 430460-55-2)
- 2-(4-Bromostyryl)quinolin-8-ol (CAS 884487-44-9)
- 5-(4-Bromostyryl)benzene-1,3-diol (CAS 205873-55-8)
- (E)-2-(3-Bromostyryl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (CAS 943552-33-8)
- 2-(4-Bromostyryl)-5-chloronicotinic acid (CAS 917942-73-5)
Recommended Standards
- 2-(4-Bromophenyl)-4,5-dichlorothiazole (CAS 1355231-32-1)
- 2-[1-(3-Bromophenyl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2559765-29-4)
- 2-Bromo-4-(3,4-dichlorophenyl)thiazole (CAS 412923-60-5)
- N-(2,5-Dibromo-phenyl)-thioacetamide (CAS 110704-51-3)
- 1-(3-Chlorophenyl)-3,4-dimethylpyrano[2,3-c]pyrazol-6(1H)-one (CAS 96138-46-4)
- (2,4-Dimethylcyclohex-3-ene-1,1-diyl)dimethanol (CAS 117933-62-7)
- 4-Fluoro-3-(methylcarbamoyl)phenylboronic acid (CAS 874219-19-9)
- tert-butyl (3S,4S)-3-amino-4-methyl-pyrrolidine-1-carboxylate (CAS 1932780-66-9)
- N-(2-Methoxyphenyl)-2-(methylamino)acetamide (CAS 1016756-28-7)
- 6-chloroquinoxaline-2-carboxylic acid (CAS 29821-63-4)
- 4-Bromo-3-nitro-1H-indazole (CAS 1936639-89-2)
- Letrozole Impurity 33 (CAS 1461654-89-6)
- 7-(2,3-Dihydroxypropyl)-8-(hexylamino)-3-methyl-3,7-dihydro-1H-purine-2,6-dione (CAS 505080-75-1)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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