(E)-4,4,5,5-Tetramethyl-2-(2-methylstyryl)-1,3,2-dioxaborolane CAS 1294009-26-9
| CAS No. | 1294009-26-9 |
| Molecular Formula | C15H21BO2 |
| Molecular Weight | 244.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (E)-4,4,5,5-Tetramethyl-2-(2-methylstyryl)-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.
CATO supplies (E)-4,4,5,5-Tetramethyl-2-(2-methylstyryl)-1,3,2-dioxaborolane (CAS 1294009-26-9), a certified reference material (molecular formula C15H21BO2, MW 244.14 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (E)-4,4,5,5-Tetramethyl-2-(2-methylstyryl)-1,3,2-dioxaborolane is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C15H21BO2 |
| Molecular Weight | 244.14 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 E Standards
- (Z)-4,4,5,5-tetramethyl-2-(4-methylstyryl)-1,3,2-dioxaborolane (CAS 1192488-87-1)
- rac-4,4,5,5-tetramethyl-2-[(1R,2R)-2-phenylcyclopropyl]-1,3,2-dioxaborolane (CAS 1240492-27-6)
- 4,4,5,5-Tetramethyl-2-[(1s,2s)-2-phenylcyclopropyl]-1,3,2-dioxaborolane (CAS 1240492-43-6)
- 4,4,5,5-Tetramethyl-2-(1-phenylcyclopropyl)-1,3,2-dioxaborolane (CAS 1314495-37-8)
- 4,4,5,5-Tetramethyl-2-(3-methylstyryl)-1,3,2-dioxaborolane (CAS 1315277-67-8)
- 4,4,5,5-Tetramethyl-2-(4-methylstyryl)-1,3,2-dioxaborolane (CAS 1377187-54-6)
- 4,4,5,5-Tetramethyl-2-((1R,2S)-2-phenylcyclopropyl)-1,3,2-dioxaborolane (CAS 1384753-69-8)
- 4,4,5,5-Tetramethyl-2-(1-(p-tolyl)vinyl)-1,3,2-dioxaborolane (CAS 1404192-78-4)
Recommended Standards
- Diisopropyl (p-tolylethynyl)boronate (CAS 1309981-25-6)
- 4-Cyclopropylphenylboronic Acid Pinacol Ester (CAS 1219741-94-2)
- 2-(Chloromethyl)-4-(2-chlorophenyl)-1,3-thiazole (CAS 1211510-85-8)
- 2-(Chloromethyl)-4-(3-chlorophenyl)-1,3-thiazole (CAS 1342394-08-4)
- Dimethyl 5-(((trifluoromethyl)sulfonyl)oxy)isophthalate (CAS 168619-21-4)
- 3-Amino-2-methyl-1-(tetrahydrofuran-3-yl)propan-1-ol (CAS 1559279-20-7)
- 2H,3H,4H,5H-pyrido[4,3-f][1,4]oxazepine dihydrochloride (CAS 1443979-87-0)
- Ro3280 (CAS 1062243-51-9)
- tert-Butyl N-[(E)-3-tributylstannylallyl]carbamate (CAS 139111-44-7)
- Mal-NH-PEG2-CH2CH2COOPFP ester (CAS 1347750-81-5)
- N-[3-(2-Ethoxyethoxy)benzyl]-2,5-dimethoxyaniline (CAS 1040688-69-4)
- 5-Chloro-2-methoxy-4-(methylamino)benzoic acid (CAS 61694-98-2)
- (2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)boronic acid (CAS 1116093-39-0)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com