3-[4-(trifluoromethyl)phenyl]but-2-enoic acid CAS 91136-84-4
| CAS No. | 91136-84-4 |
| Molecular Formula | C11H9F3O2 |
| Molecular Weight | 230.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 3-[4-(trifluoromethyl)phenyl]but-2-enoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-[4-(trifluoromethyl)phenyl]but-2-enoic acid (CAS 91136-84-4) is a high-purity analytical reference standard with the molecular formula C11H9F3O2 and a molecular weight of 230.18 g/mol.
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.
As a certified reference material (CRM), 3-[4-(trifluoromethyl)phenyl]but-2-enoic 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 | C11H9F3O2 |
| Molecular Weight | 230.18 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; 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.) | 1983 |
| Halogen Content | F-containing |
Related trifluoromethyl Standards
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- 3-[3-methyl-4-(trifluoromethyl)phenyl]prop-2-enoic acid (CAS 1214790-35-8)
- 3-[2-methyl-4-(trifluoromethyl)phenyl]prop-2-enoic acid (CAS 1214790-49-4)
Recommended Standards
- 3-[4-(trifluoromethyl)phenyl]but-2-enoic acid (CAS 7386-61-0)
- 3-Cyclopropyl-4-(trifluoromethoxy)benzaldehyde (CAS 2830621-06-0)
- 3-[3-(trifluoromethyl)phenyl]but-2-enoic acid (CAS 92422-78-1)
- 3-Cyclopropyl-5-(trifluoromethoxy)benzaldehyde (CAS 2444272-12-0)
- 4'-Methyl-2,3,4,5-tetrahydro-1,1'-biphenyl (CAS 1821-23-4)
- 1-(3,4-Dichlorophenyl)-3-(4-methylpyrimidin-2-yl)urea (CAS 377760-89-9)
- (2S)-2-tert-Butyloxy-butanedioic Acid tert-Butyl Ethyl Ester (CAS 958350-60-2)
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