(E)-3-Methyl-4-oxo-2-butenoic Acid Ethyl Ester 3-Methyl-fumaraldehydic Acid Ethyl Ester 62054-49-3 Ethyl (2E)-3-Methyl-4-oxobut-2-enoate Ethyl 3-methyl-4-oxocrotonate Ethyl trans-3-Methyl-4-oxocrotonate Ethyl trans-3-methyl-4-oxo-2-butenoate Ethyl trans-|A-oxosenecioate CAS 62054-49-3
| CAS No. | 62054-49-3 |
| Molecular Formula | C7H10O3 |
| Molecular Weight | 142.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (E)-3-Methyl-4-oxo-2-butenoic Acid Ethyl Ester 3-Methyl-fumaraldehydic Acid Ethyl Ester 62054-49-3 Ethyl (2E)-3-Methyl-4-oxobut-2-enoate Ethyl 3-methyl-4-oxocrotonate Ethyl trans-3-Methyl-4-oxocrotonate Ethyl trans-3-methyl-4-oxo-2-butenoate Ethyl trans-|A-oxosenecioate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(E)-3-Methyl-4-oxo-2-butenoic Acid Ethyl Ester 3-Methyl-fumaraldehydic Acid Ethyl Ester 62054-49-3 Ethyl (2E)-3-Methyl-4-oxobut-2-enoate Ethyl 3-methyl-4-oxocrotonate Ethyl trans-3-Methyl-4-oxocrotonate Ethyl trans-3-methyl-4-oxo-2-butenoate Ethyl trans-|A-oxosenecioate (CAS 62054-49-3), molecular formula C7H10O3 and molecular weight 142.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H10O3, (E)-3-Methyl-4-oxo-2-butenoic Acid Ethyl Ester 3-Methyl-fumaraldehydic Acid Ethyl Ester 62054-49-3 Ethyl (2E)-3-Methyl-4-oxobut-2-enoate Ethyl 3-methyl-4-oxocrotonate Ethyl trans-3-Methyl-4-oxocrotonate Ethyl trans-3-methyl-4-oxo-2-butenoate Ethyl trans-|A-oxosenecioate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 142.15 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 | C7H10O3 |
| Molecular Weight | 142.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
Recommended Standards
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