Ethyl 4-methylene-2-oxooxazolidine-3-carboxylate CAS 166389-74-8
| CAS No. | 166389-74-8 |
| Molecular Formula | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-methylene-2-oxooxazolidine-3-carboxylate (CAS 166389-74-8), molecular formula C7H9NO4 and molecular weight 171.15 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 4-methylene-2-oxooxazolidine-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Ethyl 4-methylene-2-oxooxazolidine-3-carboxylate 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 | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
- 3-Ethoxy-4-methylisoxazole-5-carboxylic acid (CAS 166180-70-7)
- Ethyl 2-(hydroxymethyl)oxazole-5-carboxylate (CAS 172991-73-0)
- 4-Aminobenzoic Acid-13C6 (CAS 161406-19-5)
- 3-Acetyl-4-amino-4-hydroxy-1-methyl-1H-pyrazol-5(4H)-one (CAS 175472-58-9)
- 1-Methylpiperidin-4-yl acetate (CAS 6659-34-3)
- 2',3'-Dimethyl-[1,1'-biphenyl]-4-ol (CAS 1261894-01-2)
- N-(2-Methyl-1-(1H-pyrazol-4-yl)propyl)pyridin-2-amine (CAS 1365938-98-2)
- 1-Propylcyclohexan-1-amine (CAS 68288-34-6)
- 5-Nitro-3-(4-trifluoromethoxyphenyl)benzoic acid (CAS 1261782-84-6)
- N-(3-Cyano-4,5,6,7-tetrahydro-2-benzothienyl)-3-phenylpropanamide (CAS 321945-24-8)
- 3-{[4-(tert-Butyl)benzyl]oxy}azetidine (CAS 1121625-13-5)
- 1-Amino-2-(3-oxo-3-phenylprop-1-yn-1-yl)anthracene-9,10-dione (CAS 129995-13-7)
- n-(3-Hydroxycyclobutyl)methanesulfonamide, mixture of diastereomers (CAS 1480396-53-9)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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