4-(3,4-Difluorophenyl)but-3-yn-2-ol CAS 893747-19-8
| CAS No. | 893747-19-8 |
| Molecular Formula | C10H8F2O |
| Molecular Weight | 182.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(3,4-Difluorophenyl)but-3-yn-2-ol is closely related to a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(3,4-Difluorophenyl)but-3-yn-2-ol (CAS 893747-19-8), molecular formula C10H8F2O and molecular weight 182.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H8F2O, 4-(3,4-Difluorophenyl)but-3-yn-2-ol contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.17 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.
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 | C10H8F2O |
| Molecular Weight | 182.17 g/mol |
| Appearance | Off-white to pale 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 4-(2,3-Difluorophenyl)but-3-en-2-one (CAS 1033193-94-0)
- 4-(2,4-Difluorophenyl)but-3-en-2-one (CAS 1115962-39-4)
- 3-(2,4-Difluorophenyl)cyclobutan-1-one (CAS 1260161-42-9)
- (E)-4-(2,5-difluorophenyl)but-3-en-2-one (CAS 1571074-31-1)
- (S)-5-(3,5-Difluorophenyl)-4,5-dihydro-1H-pyrazole (CAS 2428406-36-2)
- 1-(3,5-Difluorophenyl)but-3-en-2-one (CAS 889955-36-6)
- 4-(2,3-Difluorophenyl)but-3-yn-1-ol (CAS 939043-50-2)
- 4-(3,5-Difluorophenyl)but-3-yn-2-ol (CAS 893641-84-4)
Recommended Standards
- 3-Methyl orsellinic Acid (CAS 4707-46-4)
- 4-(Hydroxymethyl)phenoxyacetic acid (CAS 68858-21-9)
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- 4-(Methoxymethoxy)benzoic Acid (CAS 25458-44-0)
- 2-(3,4-Dimethoxyphenyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)ethan-1-amine hydrochloride (CAS 1135268-35-7)
- 5-Hydroxy-6-phenyl-5H-pyrrolo[3,4-b]pyridin-7(6H)-one (CAS 122706-49-4)
- 5-Cyclopropoxy-2-(methylsulfonamido)benzenesulfonamide (CAS 1243471-67-1)
- 1-Ethoxy-2,3-difluoro-4-(((1s,4r)-4-propylcyclohexyl)methoxy)benzene (CAS 875468-59-0)
- 5-(2-Hydroxy-6-oxo-cyclohex-1-enecarbonyl)-4-oxazol-2-yl-2-trifluoromethyl-benzonitrile (CAS 1231601-71-0)
- 8-Chloro-7-iodo-3-(2,2,2-trifluoroethyl)-[1,2,4]triazolo[4,3-a]pyridine, 97% (CAS 1255311-42-2)
- (2E)-1-(2,4-Dimethylphenyl)-3-(4-methylphenyl)prop-2-en-1-one (CAS 200934-19-6)
- Bis(diisopropylamino)chlorophosphine (CAS 56183-63-2)
- 5,5',5''-(Benzene-1,3,5-triyl)tris(thiophene-2-carboxylic acid) (CAS 1442006-75-8)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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