(E)-4-Oxohept-2-enoic acid CAS 923984-59-2
| CAS No. | 923984-59-2 |
| Molecular Formula | C7H10O3 |
| Molecular Weight | 142.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 142.15 g/mol gives (E)-4-Oxohept-2-enoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(E)-4-Oxohept-2-enoic acid (CAS 923984-59-2) is a high-purity analytical reference standard with the molecular formula C7H10O3 and a molecular weight of 142.15 g/mol.
The molecular framework of (E)-4-Oxohept-2-enoic acid (C7H10O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.) | 1987 |
Related E Standards
- 6-Methyl-4-oxohept-5-enoic acid (CAS 54608-07-0)
- Ethyl 3-oxohept-6-ynoate (CAS 35116-07-5)
- Ethyl 3-oxohept-6-enoate (CAS 17605-06-0)
- Ethyl 2-oxohept-6-enoate (CAS 55782-68-8)
- 4-(6-Methyl-4-oxohept-5-en-2-yl)cyclohex-2-en-1-one (CAS 170380-68-4)
- 6-((3-Oxohept-1-en-1-yl)thio)-1,2,4-triazine-3,5(2H,4H)-dione (CAS 80037-02-1)
Recommended Standards
- (E)-3-tetrahydrofuran-3-ylprop-2-enoic acid (CAS 768370-88-3)
- (E)-Ethyl 2-methyl-4-oxobut-2-enoate (CAS 71041-38-8)
- (E)-3-Methyl-4-oxobut-2-en-1-yl acetate (CAS 26586-02-7)
- (R)-2-(3-Oxocyclopentyl)acetic acid (CAS 2630-44-6)
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