(E)-2-(4-ethoxystyryl)-4H-benzo[e][1,3]oxazin-4-one CAS 380643-54-9
| CAS No. | 380643-54-9 |
| Molecular Formula | C18H15NO3 |
| Molecular Weight | 293.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H15NO3, (E)-2-(4-ethoxystyryl)-4H-benzo[e][1,3]oxazin-4-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 293.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(E)-2-(4-ethoxystyryl)-4H-benzo[e][1,3]oxazin-4-one (CAS 380643-54-9) is a high-purity analytical reference standard with the molecular formula C18H15NO3 and a molecular weight of 293.32 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-2-(4-ethoxystyryl)-4H-benzo[e][1,3]oxazin-4-one 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 | C18H15NO3 |
| Molecular Weight | 293.32 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.) | 2025 |
| Nitrogen Atoms | 1 |
Related E Standards
- 3-(2-Ethoxystyryl)quinoxalin-2(1H)-one (CAS 868214-14-6)
- (E)-6-(4-ethoxystyryl)-4,5-dihydropyridazin-3(2H)-one (CAS 860649-55-4)
- 4-(4-Ethoxystyryl)-N,N-diphenylaniline (CAS 92003-03-7)
- (4-Ethoxystyryl)boronic acid (CAS 1486485-37-3)
- (E)-4-(2-ethoxystyryl)-6-phenoxy-2,3-dihydrothieno[3,2-c]quinoline (CAS 866133-83-7)
- (E)-4-(4-ethoxystyryl)-8-phenoxy-2,3-dihydrothieno[3,2-c]quinoline (CAS 866018-63-5)
Recommended Standards
- (6-Methyl-4-phenylquinazolin-2-yl)glycine (CAS 333749-21-6)
- (E)-N'-(4-(benzyloxy)benzylidene)-2-cyanoacetohydrazide (CAS 339100-46-8)
- (5-Phenylisoxazol-3-yl)methyl 4-methylbenzoate (CAS 343374-52-7)
- (R)-2-((1-((Benzyloxy)carbonyl)piperidin-3-yl)oxy)acetic acid (CAS 937057-83-5)
- Tetrazolium Violet (CAS 1719-71-7)
- 4-Amino-2,5-dichlorobenzoic acid (CAS 50917-33-4)
- 2＇,5＇-Dihydroxyacetophenone (CAS 490-78-8)
- 1-(p-Methoxyphenyl)-2-nitro-1-propene (CAS 17354-63-1)
- 3-[3-(4-Bromophenyl)-6-methyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-1-yl]propanoic acid (CAS 1048915-92-9)
- 4-Amino-1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-D-erythro-pentofuranosyl]-1,3,5-triazin-2(1H)-one (CAS 1193165-26-2)
- 3-(Benzoxy)-5-chlorobenzoic acid (CAS 53985-44-7)
- 4-Isopropyl-5-methoxyfuran-2(5H)-one (CAS 180576-33-4)
- 7-Chloro-2-(2,4-dimethylphenyl)-8-methylquinoline-4-carboxylic acid (CAS 725244-73-5)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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