4-(2-Chlorophenyl)-2-fluorobenzoic acid CAS 505082-99-5
| CAS No. | 505082-99-5 |
| Molecular Formula | C13H8ClFO2 |
| Molecular Weight | 250.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Chlorophenyl)-2-fluorobenzoic acid (CAS 505082-99-5), molecular formula C13H8ClFO2 and molecular weight 250.65 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H8ClFO2, 4-(2-Chlorophenyl)-2-fluorobenzoic acid 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 250.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(2-Chlorophenyl)-2-fluorobenzoic 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 | C13H8ClFO2 |
| Molecular Weight | 250.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F/Cl-containing |
Related Chlorophenyl Standards
- 5-(2-Chlorophenyl)-2-fluorobenzoic acid (CAS 1184837-79-3)
- 4-(4-Chlorophenyl)-3-fluorobenzoic acid (CAS 1261904-48-6)
- 3-(3-Chlorophenyl)-5-fluorobenzoic acid (CAS 1261929-09-2)
- 4-(2-Chlorophenyl)-3-fluorobenzoic acid (CAS 1261933-39-4)
- 3-(3-Chlorophenyl)-4-fluorobenzoic acid (CAS 1262005-93-5)
- 4-(4-Chlorophenyl)-2-fluorobenzoic acid (CAS 764722-93-2)
- 2-(3-Chlorophenyl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 1087606-58-3)
- 1-(4-Chlorophenyl)-4-oxo-1,4-dihydropyridazine-3-carboxylic acid (CAS 147920-34-1)
Recommended Standards
- 2'-Chloro-5-fluoro-2-hydroxybenzophenone (CAS 2341-94-8)
- 2-Chloro-4-(4-fluorophenyl)benzoic acid (CAS 728951-41-5)
- 4-Chloro-2-fluoro-[1,1'-biphenyl]-3-carboxylic acid (CAS 2624417-74-7)
- 2-(4-Chlorophenoxy)-5-fluorobenzaldehyde (CAS 289717-78-8)
- n-((1,4-Dithian-2-yl)methyl)-1-(2-chloro-6-fluorophenyl)methanamine (CAS 1384649-96-0)
- Tert-butyl 3-(((5-bromo-3-iodopyridin-2-yl)oxy)methyl)pyrrolidine-1-carboxylate (CAS 1186311-10-3)
- 4-Chloro-N-(2-(o-tolyl)-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)benzamide (CAS 396719-92-9)
- Furan-2-ylmethyl phenylcarbamate (CAS 6325-14-0)
- 6-bromo-4-nitropicolinaldehyde (CAS 1289072-62-3)
- 4-Isopropyl-3-propoxybenzoic acid (CAS 1361003-87-3)
- 1-(5-Bromopentyl)pyrrolidine (CAS 1339473-84-5)
- N-(5-bromo-2-(3-hydroxyprop-1-yn-1-yl)pyridin-3-yl)pivalamide (CAS 1228666-45-2)
- 5-Hydroxy-6-(trifluoromethyl)pyridine-3-carboxamide (CAS 1807064-62-5)
- Tetrapeptide-30/Tegopep (CAS 1036207-61-0)
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