4-((3,4-Difluorophenyl)ethynyl)phenol CAS 331718-48-0
| CAS No. | 331718-48-0 |
| Molecular Formula | C14H8F2O |
| Molecular Weight | 230.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-((3,4-Difluorophenyl)ethynyl)phenol.
CATO supplies 4-((3,4-Difluorophenyl)ethynyl)phenol (CAS 331718-48-0), a certified reference material (molecular formula C14H8F2O, MW 230.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H8F2O, 4-((3,4-Difluorophenyl)ethynyl)phenol contains a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 230.21 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C14H8F2O |
| Molecular Weight | 230.21 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 2-(3,4-Difluorophenyl)-1H-benzo[d]imidazole (CAS 1081112-48-2)
- Ethyl 3-(3,4-Difluorophenyl)-3-hydroxypropanoate (CAS 1247149-72-9)
- Ethyl 2-(3,4-difluorophenyl)-2-hydroxypropanoate (CAS 1250357-14-2)
- 5-(3,5-Difluorophenyl)-6-methyl-2-pyridinecarbonitrile (CAS 1424941-65-0)
- 2-(2,6-Difluorophenyl)-1h-benzo[d]imidazole (CAS 164593-05-9)
- 2-(2,4-Difluorophenyl)imidazo[1,2-a]pyridine (CAS 769093-92-7)
- 4-(3,5-Difluorophenyl)-1H-pyrrolo[2,3-b]pyridine (CAS 858116-76-4)
- methyl 3-[(2,5-difluorophenyl)sulfanyl]prop-2-enoate (CAS 1563957-23-2)
Recommended Standards
- 2-Deoxyuridine-5,5-d (CAS 478511-30-7)
- 4-(2,3,6-Trifluorophenyl)thiazol-2-amine (CAS 886495-24-5)
- 2′-Deoxyuridine-5,6-d2 (CAS 40632-23-3)
- 4-(3-(Trifluoromethyl)phenyl)-1,2,3-thiadiazole (CAS 77414-48-3)
- N-[(4-Methoxyphenyl)methyl]-4H-3,1-benzothiazin-2-amine (CAS 320419-97-4)
- 3-(4-(2,4-Bis(trifluoromethyl)phenyl)pyridin-2-yl)-1,2,4-oxadiazol-5(4H)-one (CAS 1219453-96-9)
- 1-(7-Bromo-4-fluoro-1H-indol-3-yl)ethanone (CAS 1936547-34-0)
- (Z)-2-(4-(4-(tert-butyl)phenyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-N'-((4-fluorobenzoyl)oxy)acetimidamide (CAS 866038-35-9)
- 3-Phenyl-1-(pyridin-4-yl)propan-1-ol (CAS 865075-16-7)
- 6-(Iodomethyl)-2,2-dimethyl-1,4-dioxane (CAS 1269755-05-6)
- Substance P (9-11) (CAS 40297-96-9)
- 1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)ethanone (CAS 1103862-13-0)
- Phenyl 2-hydroxy-3-methoxybenzoate (CAS 59569-06-1)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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