2-(4-Fluorophenyl)-3-methylbut-2-enoic acid CAS 170432-99-2
| CAS No. | 170432-99-2 |
| Molecular Formula | C11H11FO2 |
| Molecular Weight | 194.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(4-Fluorophenyl)-3-methylbut-2-enoic acid (C11H11FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 194.20 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 2-(4-Fluorophenyl)-3-methylbut-2-enoic acid (CAS 170432-99-2), a certified reference material (molecular formula C11H11FO2, MW 194.20 g/mol) for analytical method development and quality control.
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.
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 | C11H11FO2 |
| Molecular Weight | 194.20 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
Related Fluorophenyl Standards
- 1-(2-FLuorophenyl)-cyclopropanecarboxylic acid, methyl ester (CAS 1017391-66-0)
- 1-(3-Fluorophenyl)pentane-1,3-dione (CAS 1040075-44-2)
- 3-(3-Fluorophenyl)tetrahydrofuran-3-carbaldehyde (CAS 1060817-40-4)
- 3-(4-Fluorophenyl)tetrahydrofuran-3-carbaldehyde (CAS 1060817-44-8)
- (Z)-5-(4-Fluorophenyl)pent-4-enoic acid (CAS 1206694-73-6)
- 2-(1-(2-Fluorophenyl)cyclopropyl)acetic acid (CAS 1225708-37-1)
- 2-(1-(4-Fluorophenyl)cyclopropyl)acetic acid (CAS 1226193-93-6)
- 3-(3-Fluorophenyl)cyclobutane-1-carboxylic acid, mixture of diastereomers (CAS 1235439-81-2)
Recommended Standards
- 8-fluoro-7-methyl-3,4-dihydrobenzo[b]oxepin-5(2H)-one (CAS 1696324-19-2)
- 5-Fluoro-2,2-dimethylchroman-4-one (CAS 170960-35-7)
- Ethyl (E)-3-(3-fluorophenyl)acrylate (CAS 166250-00-6)
- 1-(3-Fluorophenyl)cyclobutanecarboxylic Acid (CAS 179411-84-8)
- 3-(2,3-Difluorophenyl)phenol (CAS 1261957-50-9)
- 1-(4-Methoxyphenyl)-1h-pyrazolo[3,4-d]pyrimidin-4-ol (CAS 650628-53-8)
- 1-(Cyclohexanecarbonyl)piperidine-3-carboxylic acid (CAS 436093-18-4)
- (24S)-24-Ethylcholest-5,22-diene (CAS 76879-05-5)
- 4-(Benzo[d][1,3]dioxol-5-yl)-2-((3-methoxybenzyl)thio)-1,4-dihydro-5H-indeno[1,2-d]pyrimidin-5-one (CAS 861211-19-0)
- 2-(Furan-3-yl)pyrrolidine (CAS 383127-25-1)
- Ethyl 2-amino-5-bromo-1H-indole-3-carboxylate (CAS 1242140-62-0)
- Methyl 3'-(benzyloxy)-[1,1'-biphenyl]-3-carboxylate (CAS 893736-53-3)
- 2,2,2-Trichloro-n-(2,4-difluorophenyl)acetamide (CAS 349612-50-6)
- Serpent Peptide (CAS 823202-99-9)
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