4,4,5,5-Tetramethyl-2-(3-methylfuran-2-yl)-1,3,2-dioxaborolane CAS 921938-69-4
| CAS No. | 921938-69-4 |
| Molecular Formula | C11H17BO3 |
| Molecular Weight | 208.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H17BO3, 4,4,5,5-Tetramethyl-2-(3-methylfuran-2-yl)-1,3,2-dioxaborolane contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4,4,5,5-Tetramethyl-2-(3-methylfuran-2-yl)-1,3,2-dioxaborolane (CAS 921938-69-4) is a high-purity analytical reference standard with the molecular formula C11H17BO3 and a molecular weight of 208.06 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.
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 | C11H17BO3 |
| Molecular Weight | 208.06 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
Related Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(4-methylfuran-2-yl)-1,3,2-dioxaborolane (CAS 1242517-59-4)
- 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclopent-2-en-1-one (CAS 1370008-65-3)
- 1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1020174-04-2)
- 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-Imidazole (CAS 1083180-01-1)
- 4-Methyl-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (CAS 1392418-38-0)
- 5-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1430754-36-1)
- 1-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (CAS 553651-31-3)
- 2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (CAS 2304754-80-9)
Recommended Standards
- 4-(Benzyloxy)butylboronic acid (CAS 2377610-35-8)
- 4,5-Dimethyl-2-isopropoxyphenylboronic acid (CAS 2121514-40-5)
- 3-Hydroxypropyl hydrogen (3,5-dimethylphenyl)boronate (CAS 436853-63-3)
- 5-Methylfuran-2-boronic Acid Pinacol Ester (CAS 338998-93-9)
- Ethyl (1R,2R)-2-([1,1'-biphenyl]-4-yl)cyclopropane-1-carboxylate (CAS 1052650-70-0)
- Methyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate (CAS 676348-61-1)
- 4-(1,1-Dioxidothiomorpholino)-N-(4-methoxyphenyl)benzamide (CAS 478064-74-3)
- (3S)-3-Amino-5-phenylpentanoic acid hydrochloride (CAS 331846-97-0)
- 4-Methyl-2-(2-phenylpropan-2-yl)-1,3-thiazole-5-carboxylic acid (CAS 1017449-27-2)
- (3-Amino-4,6-dimethylfuro[2,3-b]pyridin-2-yl)(phenyl)methanone (CAS 54891-82-6)
- Methyl 3-amino-3-(m-tolyl)propanoate (CAS 1038308-39-2)
- Benzyl 4-(3-methoxy-3-oxopropanoyl)piperidine-1-carboxylate (CAS 1013353-70-2)
- 6-Iodo-N,N-dimethylpyrazin-2-amine (CAS 125060-66-4)
- (Cys2)-Neuropeptide Y-8-aminooctanoyl-(D-Cys27)-Neuropeptide Y (25-32) (H-3298.0500) (CAS 128806-04-2)
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