(4-Chloro-2-fluoro-3-methylphenyl)boronic acid CAS 944128-92-1
| CAS No. | 944128-92-1 |
| Molecular Formula | C7H7BClFO2 |
| Molecular Weight | 188.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(4-Chloro-2-fluoro-3-methylphenyl)boronic acid (CAS 944128-92-1), molecular formula C7H7BClFO2 and molecular weight 188.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4-Chloro-2-fluoro-3-methylphenyl)boronic acid (C7H7BClFO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 188.39 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), (4-Chloro-2-fluoro-3-methylphenyl)boronic acid 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 | C7H7BClFO2 |
| Molecular Weight | 188.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- (5-Chloro-2-fluoro-4-methylphenyl)boronic acid (CAS 1072952-42-1)
- 2-Chloro-4-fluoro-5-methylphenylboronic acid (CAS 1207428-93-0)
- (2-Chloro-6-fluorobenzyl)boronic acid (CAS 1350512-24-1)
- 2-Chloro-5-fluoro-4-methylphenylboronic acid (CAS 1612184-35-6)
- (3-Chloro-2-fluoro-4-methylphenyl)boronic acid (CAS 2377608-77-8)
- (3-Chloro-2-fluoro-5-methylphenyl)boronic acid (CAS 352535-88-7)
- (4-Chloro-2-fluoro-5-methylphenyl)boronic acid (CAS 325786-09-2)
- (5-Chloro-2-fluoro-3-methylphenyl)boronic acid (CAS 352535-87-6)
Recommended Standards
- [(2-Chloro-5-fluorophenyl)methyl]boronic acid (CAS 2246614-18-4)
- [(4-Chloro-2-fluorophenyl)methyl]boronic acid (CAS 2246683-95-2)
- 2-Chloro-4-fluoro-3-methylpheny)boronic acid (CAS 2304633-76-7)
- 2-Chloro-4-fluoro-6-methylphenylboronic acid (CAS 2121514-96-1)
- Gardenin B (CAS 2798-20-1)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(benzo[d][1,3]dioxol-5-yl)acetamide (CAS 586994-47-0)
- 6-Methyl-2-(naphthalen-2-yl)-1,3,6,2-dioxazaborocane-4,8-dione (CAS 1257648-36-4)
- (R)-tert-Butyl (1-(4-bromo-2-methylphenyl)ethyl)carbamate (CAS 2387559-64-8)
- n-(6-Chloro-1,3-benzothiazol-2-yl)acetamide (CAS 16628-24-3)
- Ammonium pentaborate octahydrate (CAS 12046-03-6)
- 5-Bromo-4-iodonicotinic acid (CAS 491588-98-8)
- 4-Chloro-3-hydroxypyridin-2(1H)-one (CAS 19365-20-9)
- 1-(2-Ethylhexyl)-1H-pyrazol-4-amine (CAS 1240580-12-4)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
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