1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl)ethan-1-one CAS 1040281-85-3
| CAS No. | 1040281-85-3 |
| Molecular Formula | C12H17BO3S |
| Molecular Weight | 252.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H17BO3S, 1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl)ethan-1-one contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.14 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).
CATO supplies 1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl)ethan-1-one (CAS 1040281-85-3), a certified reference material (molecular formula C12H17BO3S, MW 252.14 g/mol) for analytical method development and quality control.
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 | C12H17BO3S |
| Molecular Weight | 252.14 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Sulfur Atoms | 1 |
Related Tetramethyl Standards
- 1-(3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)ethanone (CAS 864754-06-3)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydropyridine-1(2H)-carboxamide (CAS 1257996-76-1)
- (S)-1-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol (CAS 1282530-88-4)
- (R)-2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-1-ol (CAS 2505078-37-3)
- (S)-2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-1-ol (CAS 2505078-45-3)
- 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5-dihydro-1H-pyrrolo[3,4-b]pyrrol-6-one (CAS 2052290-76-1)
- 3-(tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyridine (CAS 1160614-73-2)
- 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyridine (CAS 1873385-99-9)
Recommended Standards
- (2,5-Dichlorophenyl)(phenyl)methanamine (CAS 1019395-47-1)
- 3-chloro-N-[(4-chlorophenyl)methyl]aniline (CAS 107623-16-5)
- (3,5-Dichlorophenyl)(phenyl)methanamine (CAS 1019355-37-3)
- 5,7-Dinitro-1H-indazole-3-carboxylic acid (CAS 1167055-79-9)
- 2-Amino-3,4-dimethoxybenzaldehyde (CAS 50779-85-6)
- 3-O-Methyl 6-Keto 17b-Estradiol 17-O-Tetrahydropyran (CAS 174497-42-8)
- 1-Bromo-4-chlorobutane-d8 (CAS 1219803-72-1)
- p-Diazo-o-chloro-N,N-diethylaniline zincchloride (CAS 60869-68-3)
- Prednisone Impurity N297 (CAS 1249-67-8)
- (2-(Adamantan-1-yl)-2-oxoethyl)triphenylphosphonium bromide (CAS 17760-78-0)
- 4-Fluoro-2-methylbenzaldehyde (CAS 63082-45-1)
- 3,5-Dimethyl-1H-pyrazol-4-ol (CAS 2820-38-4)
- 4-Bromo-5-chloro-2-phenylpyridazin-3(2H)-one (CAS 65269-62-7)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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