(3E)-2-Oxo-4-phenylbut-3-enoic acid hydrate CAS 17451-19-3
| CAS No. | 17451-19-3 |
| Molecular Formula | C10H8O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (3E)-2-Oxo-4-phenylbut-3-enoic acid hydrate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
(3E)-2-Oxo-4-phenylbut-3-enoic acid hydrate (CAS 17451-19-3), molecular formula C10H8O3H2O and molecular weight 194.19 g/mol, is a CATO reference standard with documented purity and traceability.
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), (3E)-2-Oxo-4-phenylbut-3-enoic acid hydrate 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 | C10H8O3 H2O |
| Molecular Weight | 194.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Recommended Standards
- N-[4-(tert-Butyl)benzyl]cyclopentanamine (CAS 1040686-74-5)
- 2-Ethoxy-5-methyl-2H-benzo[d]imidazole (CAS 343332-54-7)
- (4-Fluoro-2-(piperidin-3-yl)phenyl)boronic acid (CAS 2225151-69-7)
- 2-(Benzylamino)-2-oxoacetic acid (CAS 6345-08-0)
- 3-(methylsulfanyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 53065-40-0)
- 10-Oxo-10H-pyridazino[6,1-b]quinazoline-2-carboxylic acid (CAS 74163-13-6)
- 5-Fluoro-4-methoxypyridin-3-ol (CAS 1184172-37-9)
- 2-Bromo-N-(4-methoxybenzyl)propanamide (CAS 142713-63-1)
- 1-Phenylcyclopropan-1-ol (CAS 29526-96-3)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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