3-(3-Fluorophenyl)prop-2-ynoic acid CAS 705-83-9
| CAS No. | 705-83-9 |
| Molecular Formula | C9H5FO2 |
| Molecular Weight | 164.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
3-(3-Fluorophenyl)prop-2-ynoic acid (CAS 705-83-9), molecular formula C9H5FO2 and molecular weight 164.13 g/mol, is a CATO reference standard with documented purity and traceability.
3-(3-Fluorophenyl)prop-2-ynoic acid (C9H5FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H5FO2 |
| Molecular Weight | 164.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Fluorophenyl Standards
- 3-(2-Fluorophenyl)prop-2-ynoic acid (CAS 704-97-2)
- 3-(3-Fluorophenyl)-1,2,4-oxadiazole (CAS 1262412-46-3)
- 3-(2-Fluorophenyl)-1,2,4-oxadiazole (CAS 1262412-83-8)
- 1-(3-Fluorophenyl)tetrazole (CAS 14210-80-1)
- 2-(2-Fluorophenyl)-1,3,4-oxadiazole (CAS 155048-66-1)
- 1-(2-Fluorophenyl)tetrazole (CAS 357158-11-3)
- 2-(3-Fluorophenyl)-1,3,4-oxadiazole (CAS 5378-32-5)
- 2-(4-Fluorophenyl)-1,3,4-oxadiazole (CAS 595567-05-8)
Recommended Standards
- 3-(trifluoromethyl)bicyclo[1.1.1]pentane-1-carbaldehyde (CAS 914082-90-9)
- 2-Fluorobenzofuran-5-carbaldehyde (CAS 554448-81-6)
- 3-(trifluoromethyl)cyclohex-2-en-1-one (CAS 74031-45-1)
- 2,2,2-Trifluoro-1-(1H-pyrrol-2-yl)ethan-1-amine (CAS 497884-05-6)
- 1-(2-Methyl-2H-indazol-7-yl)ethan-1-one (CAS 1159511-30-4)
- propan-2-yl 4-(chloromethyl)benzoate (CAS 87234-10-4)
- Brominatedpolystyrene (CAS 57137-10-7)
- 1-Bromo-3-(bromomethyl)-2-nitrobenzene (CAS 63471-25-0)
- Tert-butyl (S)-2-methyl-6-oxo-1,4-oxazepane-4-carboxylate (CAS 1160945-46-9)
- N-((3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl)propan-2-amine (CAS 1156806-31-3)
- 2,2,3,3,3-Pentafluoro-1-(2-isopropylphenyl)propan-1-one (CAS 1443354-17-3)
- 3-(Difluoromethyl)-4-(hydroxymethyl)-6-(trifluoromethyl)picolinonitrile (CAS 1806955-76-9)
- 2-(2-Chlorophenyl)-2-(methylamino)-6-(thiophen-2-ylmethylidene)cyclohexan-1-one (CAS 380343-37-3)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com