4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-3-carbaldehyde CAS 2121511-75-7
| CAS No. | 2121511-75-7 |
| Molecular Formula | C11H15BO3S |
| Molecular Weight | 238.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-3-carbaldehyde (CAS 2121511-75-7), molecular formula C11H15BO3S and molecular weight 238.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H15BO3S, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-3-carbaldehyde 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 238.11 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).
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 | C11H15BO3S |
| Molecular Weight | 238.11 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Sulfur Atoms | 1 |
Related Tetramethyl Standards
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde (CAS 845873-35-0)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde (CAS 881381-12-0)
- 4,4,5,5-Tetramethyl-2-(1-(tetrahydro-2H-pyran-4-yl)vinyl)-1,3,2-dioxaborolane (CAS 1202245-67-7)
- 3-(tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,5H,6H-pyrrolo[1,2-b]pyrazole (CAS 1314138-13-0)
- (Z)-7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)hept-6-en-3-one (CAS 2797244-81-4)
- 2-[3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-bicyclo[1.1.1]pentanyl]ethanol (CAS 2784646-57-5)
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cycloheptanone (CAS 350498-94-1)
- 4,4,5,5-tetramethyl-2-(2-(tetrahydro-2H-pyran-3-yl)vinyl)-1,3,2-dioxaborolane (CAS CATO-CIM-105187)
Recommended Standards
- 4-chloro-1-methyl-pyrazolo[4,3-c]pyridine-6-carbonyl chloride (CAS 2633010-65-6)
- 3-Benzyl-2,6-dichloropyridine (CAS 58597-03-8)
- 5-(Chloromethyl)-2-(2-chlorophenyl)pyridine (CAS 2048273-72-7)
- 3',5'-Dichloro-[1,1'-biphenyl]-4-amine (CAS 405058-01-7)
- (S)-2-Acetamido-3,3-dimethylbutanoic acid (CAS 22146-59-4)
- 3-(4-Fluorophenyl)-2-methoxypyridine (CAS 1214374-07-8)
- 2-Amino-6-(trifluoromethyl)isonicotinaldehyde (CAS 1227603-52-2)
- 2-Methoxy-6-(trifluoromethyl)benzenemethanol (CAS 1017779-01-9)
- 3-(5-Ethylfuran-2-yl)thiomorpholine 1,1-dioxide (CAS 1315366-81-4)
- 2-(Chloromethyl)-7-nitro-1H-benzo[d]imidazole (CAS 99876-68-3)
- o-(Pyrimidin-2-ylmethyl)hydroxylamine (CAS 1091681-02-5)
- 2-((4-(4-Bromophenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 477331-20-7)
- 5-(1-Ethylpyrrolidin-2-yl)-2-(methylthio)pyridine (CAS 1352523-58-0)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
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