4-Chloro-2-methylphenylboronic Acid Pinacol Ester CAS 1030832-75-7
| CAS No. | 1030832-75-7 |
| Molecular Formula | C13H18BClO2 |
| Molecular Weight | 252.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-2-methylphenylboronic Acid Pinacol Ester (CAS 1030832-75-7), a certified reference material (molecular formula C13H18BClO2, MW 252.54 g/mol) for analytical method development and quality control.
Structurally, 4-Chloro-2-methylphenylboronic Acid Pinacol Ester (C13H18BClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 252.54 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4-Chloro-2-methylphenylboronic Acid Pinacol Ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H18BClO2 |
| Molecular Weight | 252.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(2-Chloro-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1144097-12-0)
- 2-(3-Chloro-4-ethylphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 1310949-86-0)
- 2-(5-Chloro-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1352426-91-5)
- 2-(2-Chloro-3-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1386860-54-3)
- 2-(3-Chloro-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1688649-04-8)
- 2-(2-Chloro-5-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246825-67-0)
- 2-(2-Chloro-6-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2276722-27-9)
- 2-(3-Chloro-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 445303-10-6)
Recommended Standards
- 4,6-Dimethyl-N-(2,2,2-trichloroethylidene)pyrimidin-2-amine (CAS 22126-08-5)
- 2-[4-(chloromethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1072945-04-0)
- 2-(2-Chloroethyl(hydroxy)phosphoryl)oxyethylphosphonic acid (CAS 1263034-17-8)
- 2-[3-(chloromethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073353-44-2)
- 1-(Tert-butyl)-3-((5-chloro-3-(chloromethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1455358-12-9)
- Fmoc-Arg(NO?)-OH (CAS 58111-94-7)
- 6-(Trifluoromethyl)-1h-pyrazolo[3,4-b]pyridin-3-amine (CAS 1211578-87-8)
- 2-bromo-3-nitroaniline hydrochloride (CAS 1803610-71-0)
- (4-Ethoxy-benzyl)-pyridin-3-ylmethyl-amine (CAS 510723-57-6)
- Quetiapine Impurity 87 (CAS CATO-C4X-124487)
- N-(3-(trifluoromethyl)phenyl)benzo[d][1,2,3]triazin-4-amine (CAS 477865-85-3)
- 5-Methyl-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 827589-02-6)
- [4-(1,2,3,4-Tetrahydroisoquinolin-1-yl)phenyl]methanol (CAS 199479-46-4)
- Pheromone Biosynthesis Activating Neuropeptide (Helicoverpa assulta, Heliothis zea) (CAS 122071-54-9)
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