5-Chloro-2-thiopheneboronic Acid Pinacol Ester CAS 635305-24-7
| CAS No. | 635305-24-7 |
| Molecular Formula | C10H14BClO2S |
| Molecular Weight | 244.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-Chloro-2-thiopheneboronic Acid Pinacol Ester (C10H14BClO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 5-Chloro-2-thiopheneboronic Acid Pinacol Ester (CAS 635305-24-7), a certified reference material (molecular formula C10H14BClO2S, MW 244.55 g/mol) for analytical method development and quality control.
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 5-Chloro-2-thiopheneboronic 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 | C10H14BClO2S |
| Molecular Weight | 244.55 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 1-(4-Chloro-2,6-difluorophenyl)-2,2,2-trifluoroethan-1-one (CAS 1208076-12-3)
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- 2'-Chloro-3',6',2,2,2-pentafluoroacetophenone (CAS 1208077-91-1)
- 6'-Chloro-2,2,2,2',3'-pentafluoroacetophenone (CAS 1208078-22-1)
- 1-(4-Chloro-3,5-difluorophenyl)-2,2,2-trifluoroethanone (CAS 1256467-08-9)
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- [(2-Chlorophenyl)methyl](propan-2-yl)amine (CAS 46054-87-9)
- 3-[1-(4-Chlorophenyl)-1H-pyrazol-3-yl]-1-phenyl-1,4-dihydropyridazin-4-one (CAS 318497-94-8)
- 2-((3-Chlorobenzyl)oxy)ethan-1-amine (CAS 153854-17-2)
- 3-Chlorophenyl Cyanate (CAS 1124-37-4)
- 5-cyano-2-methyl-1H-pyrrole-3-carboxylic acid (CAS 1864060-99-0)
- (S)-2-Isobutylmorpholine (CAS 1286768-90-8)
- (2,3-Difluoro-4-(trifluoromethyl)phenyl)methanol (CAS 238403-50-4)
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