(3-Oxocyclopentyl)boronic Acid Pinacol Ester CAS 379216-53-2
| CAS No. | 379216-53-2 |
| Molecular Formula | C11H19BO3 |
| Molecular Weight | 210.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3-Oxocyclopentyl)boronic Acid Pinacol Ester (CAS 379216-53-2) is a high-purity analytical reference standard with the molecular formula C11H19BO3 and a molecular weight of 210.08 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, (3-Oxocyclopentyl)boronic Acid Pinacol Ester is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures (3-Oxocyclopentyl)boronic Acid Pinacol Ester 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.
Physical & Chemical Properties
| Molecular Formula | C11H19BO3 |
| Molecular Weight | 210.08 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 2025 |
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Recommended Standards
- 2-(4,5-Dichloro-1H-imidazol-1-yl)ethanethioamide (CAS 175201-50-0)
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- 1-(2,5-Dichloro-3-thienyl)-1-ethanone oxime (CAS 70957-86-7)
- 3-(4-Aminophenoxy)benzoic acid (CAS 54579-63-4)
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- 3-Methyl-2-methylimino-4-oxo-[1,3]thiazinane-6-carboxylic acid (CAS 350707-87-8)
- n-(2-Bromophenyl)methanesulfonamide (CAS 116547-91-2)
- 2,4,6,8,10-Pentamethyl-2,4,6,8,10-pentavinyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane (CAS 17704-22-2)
- (R)-1-(4-fluoro-3-(trifluoromethyl)phenyl)propan-1-amine (CAS 1213505-78-2)
- 2-(2-Chloro-6-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805273-23-7)
- 1-(5-Amino-1,3,4-thiadiazol-2-yl)piperidine-3-carboxylic acid (CAS 2108830-91-5)
- 1,1-Difluoro-4-trifluoromethyl-cyclohexane (CAS 1416351-96-6)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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