(E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one CAS 89805-40-3
| CAS No. | 89805-40-3 |
| Molecular Formula | C11H8N2O3 |
| Molecular Weight | 216.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one (CAS 89805-40-3) is a high-purity analytical reference standard with the molecular formula C11H8N2O3 and a molecular weight of 216.19 g/mol.
The molecular framework of (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one (C11H8N2O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one 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 | C11H8N2O3 |
| Molecular Weight | 216.19 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related E Standards
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