4-(trimethylsilyl)thiophen-2-ylboronic acid CAS 222840-90-6
| CAS No. | 222840-90-6 |
| Molecular Formula | C7H17BO2SSi |
| Molecular Weight | 204.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(trimethylsilyl)thiophen-2-ylboronic acid (CAS 222840-90-6), molecular formula C7H17BO2SSi and molecular weight 204.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(trimethylsilyl)thiophen-2-ylboronic acid (C7H17BO2SSi) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 204.17 g/mol, it falls into the medium-molecular-weight range.
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 | C7H17BO2SSi |
| Molecular Weight | 204.17 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 2020 |
| Sulfur Atoms | 1 |
Related trimethylsilyl Standards
- (3-((Trimethylsilyl)ethynyl)phenyl)methanol (CAS 1007587-63-4)
- 2-Methyl-5-((trimethylsilyl)ethynyl)pyridin-3-amine (CAS 1391979-14-8)
- 4-((Trimethylsilyl)ethynyl)benzene-1,2-diamine (CAS 1431322-87-0)
- (2-((Trimethylsilyl)ethynyl)phenyl)methanol (CAS 229027-92-3)
- 5-Methyl-3-((trimethylsilyl)ethynyl)pyridin-2-amine (CAS 500903-95-7)
- 7-Methyl-3-(trimethylsilyl)-1H-indazole (CAS 679795-02-9)
- 3-Methyl-2-(trimethylsilyl)-1H-indole (CAS 135189-98-9)
- 4-Methyl-2-((trimethylsilyl)ethynyl)aniline (CAS 180624-14-0)
Recommended Standards
- 4-(Difluoromethyl)-3,5-dimethoxyphenol (CAS 2092380-84-0)
- 4,6,7-Trifluorobenzo[d]thiazol-2-amine (CAS 942473-95-2)
- 4-(Difluoromethyl)-1-isopropyl-1H-imidazole-5-carboxylic acid (CAS 2416993-34-3)
- Acibenzolar Acid Impurity 17 (CAS 88888-91-9)
- 4-{[1,3]thiazolo[5,4-b]pyridin-2-yl}-1,2,5-oxadiazol-3-amine (CAS 1493593-37-5)
- 1-((3-(Trifluoromethyl)phenoxy)methyl)-1H-pyrazole-3-carboxylic acid (CAS 1004193-05-8)
- Cis 4-(4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-2-nitrophenyl)-2-6-dimethylmorpholine (CAS 2016805-42-6)
- 2-Amino-6-(3-bromophenyl)-4-phenylpyridine-3-carbonitrile (CAS 361198-37-0)
- 3-Chloro-6-oxo-1,6-dihydro-[2,2'-bipyridine]-5-carbonitrile (CAS 1092352-59-4)
- (1S,3s)-1-((tert-butoxycarbonyl)amino)-3-methoxycyclobutane-1-carboxylic acid (CAS 2166823-89-6)
- 4-Ethoxy-N-isobutylaniline (CAS 1019544-48-9)
- (2R,3S)-4-amino-3-(((benzyloxy)carbonyl)amino)-4-oxobutan-2-yl methanesulfonate (CAS 80082-51-5)
- Caspofungin Impurity 51 Acetate Salt (CAS CATO-C4X-157551)
- Neuropeptide K, porcine (CAS 106441-70-7)
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