3-Chloro-2,4-difluorophenylboronic acid pinacol ester CAS 1799614-91-7
| CAS No. | 1799614-91-7 |
| Molecular Formula | C12H14BClF2O2 |
| Molecular Weight | 274.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Chloro-2,4-difluorophenylboronic acid pinacol ester (CAS 1799614-91-7), molecular formula C12H14BClF2O2 and molecular weight 274.50 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H14BClF2O2, 3-Chloro-2,4-difluorophenylboronic acid pinacol ester contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 274.50 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).
As a certified reference material (CRM), 3-Chloro-2,4-difluorophenylboronic 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 | C12H14BClF2O2 |
| Molecular Weight | 274.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1994 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-(5-Chloro-2,4-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073354-65-0)
- 2-(4-Chloro-2,3-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1116681-98-1)
- 2-(4-chloro-2,5-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1126320-24-8)
- 2-(4-Chloro-2,6-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1165935-84-1)
- 4-Chloro-3,5-difluorobenzeneboronic acid pinacol ester, 97% (CAS 1165935-96-5)
- 2-Chloro-4,6-difluorophenylboronic Acid Pinacol Ester (CAS 1239492-72-8)
- 2-(3-Chloro-4,5-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1437779-87-7)
- 2-(2-Chloro-4,5-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121514-02-9)
Recommended Standards
- 4-Bromo-6-chloro-1H-indole-2-carboxylic acid (CAS 1540205-70-6)
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- 5-Bromo-6-chloro-1H-indole-3-carboxylic acid (CAS 1467062-16-3)
- 4-Bromo-2-fluoropyridine-3-sulfonyl chloride (CAS 1805249-06-2)
- Cyclobutyl(5-methylthiophen-2-yl)methanamine hydrochloride (CAS 1864052-37-8)
- 2-(1-Benzylpyrrolidin-3-yl)propan-2-ol (CAS 351370-67-7)
- N-(adamantan-2-yl)-3-nitropyridin-2-amine (CAS 728025-72-7)
- 4-(3,3,3-Trifluoropropoxy)aniline (CAS 1236764-10-5)
- N-[3-(1,2,3,6-Tetrahydro-1-methyl-4-pyridinyl)-1H-indol-5-yl]-2-thiophenecarboximidamide (CAS 915036-97-4)
- 6-Bromo-1H-benzo[d]imidazole-2-carbonitrile (CAS 1805836-35-4)
- Methyl 4,5-dichloro-2-methylphenylacetate (CAS 1806275-08-0)
- Sodium tert-amyloxide solution (CAS 14593-46-5)
- (S)-N-(1-ethoxypropan-2-yl)thietan-3-amine (CAS 1841095-43-9)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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