(E)-Ethyl 5-(2-(furan-2-yl)vinyl)-3-oxo-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate CAS 5989-59-3
| CAS No. | 5989-59-3 |
| Molecular Formula | C21H20O4 |
| Molecular Weight | 336.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-Ethyl 5-(2-(furan-2-yl)vinyl)-3-oxo-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate.
(E)-Ethyl 5-(2-(furan-2-yl)vinyl)-3-oxo-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate (CAS 5989-59-3) is a high-purity analytical reference standard with the molecular formula C21H20O4 and a molecular weight of 336.38 g/mol.
Structurally, (E)-Ethyl 5-(2-(furan-2-yl)vinyl)-3-oxo-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate (C21H20O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 336.38 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C21H20O4 |
| Molecular Weight | 336.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
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