(E)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid CAS 35504-85-9
| CAS No. | 35504-85-9 |
| Molecular Formula | C10H7FO3 |
| Molecular Weight | 194.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(E)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid (CAS 35504-85-9), molecular formula C10H7FO3 and molecular weight 194.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, (E)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.16 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).
CATO manufactures (E)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7FO3 |
| Molecular Weight | 194.16 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1967 |
| Halogen Content | F-containing |
Related E Standards
- 3-(2-Fluorophenyl)-4-hydroxyfuran-2(5H)-one (CAS 100074-44-0)
- [5-(4-fluorophenyl)-1,2,4-oxadiazol-3-yl]methanol (CAS 1153456-93-9)
- [3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methanol (CAS 1155531-62-6)
- 3-(2-Fluorophenyl)dihydrofuran-2,5-dione (CAS 1226148-99-7)
- 1-(2-Fluorophenyl)pyrazolidine-3,5-dione (CAS 1245036-24-1)
- 3-[(4-fluorophenyl)methyl]-1,2,4-oxadiazol-5-ol (CAS 1251317-25-5)
- (5-(2-Fluorophenyl)-1,2,4-oxadiazol-3-yl)methanol (CAS 1314972-63-8)
- 4-(4-Fluorophenyl)-2-oxobut-3-enoic acid (CAS 16943-75-2)
Recommended Standards
- (E)-4-(4-Fluorophenyl)-2-oxobut-3-enoic acid (CAS 515824-21-2)
- (Z)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid (CAS 35513-38-3)
- (5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl)methanol (CAS 54014-09-4)
- 2-(5-Fluoro-1H-indazol-1-yl)acetic acid (CAS 944904-90-9)
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