2-Ethylidene-4-methyloxazol-5(2H)-one CAS 13895-32-4
| CAS No. | 13895-32-4 |
| Molecular Formula | C6H7NO2 |
| Molecular Weight | 125.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethylidene-4-methyloxazol-5(2H)-one (C6H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
2-Ethylidene-4-methyloxazol-5(2H)-one (CAS 13895-32-4), molecular formula C6H7NO2 and molecular weight 125.13 g/mol, is a CATO reference standard with documented purity and traceability.
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 2-Ethylidene-4-methyloxazol-5(2H)-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 | C6H7NO2 |
| Molecular Weight | 125.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Ethylidene Standards
- 4-Ethylidene-2-methyloxazol-5(4H)-one (CAS 4974-23-6)
- 5-Ethylidene-4-hydroxy-1H-pyrrol-2(5H)-one (CAS 63592-07-4)
- 5-Ethylidene-2-norbornene (Mixture of endo and ex) (CAS 16219-75-3)
- 1-Ethylidene-2-phenylhydrazine (CAS 935-07-9)
- Ethylidene,2-methoxy-1-(4-methylphenyl)-2-oxo- (CAS 428482-12-6)
- (E)-4-Ethylidene-5-methyl-3-(propan-2-ylidene)pyrrolidin-2-one (CAS 37817-45-1)
- (Z)-4-Ethylidene-5-methyl-3-(propan-2-ylidene)pyrrolidin-2-one (CAS 37817-28-0)
- N'-Ethylidene-5-methylisoxazole-3-carbohydrazide (CAS 90000-70-7)
Recommended Standards
- 5,6-Diaminopyridin-2-ol (CAS 138650-05-2)
- 4-Amino-6-methyl-2,3-dihydropyridazin-3-one (CAS 13925-21-8)
- 1-(5-Amino-1H-pyrazol-3-yl)ethanone (CAS 1373267-26-5)
- 1-ethyl-1H-1,2,3-triazole-5-carbaldehyde (CAS 1393540-46-9)
- 1-(3-Pentyl-4,5-dihydroisoxazol-5-yl)ethanone (CAS 87899-06-7)
- 2-methyl-3-(3-nitrophenyl)prop-2-enal (CAS 37524-17-7)
- Ethyl 2-{2-[({[(2-chloro-6-fluorobenzyl)oxy]imino}methyl)amino]-1,3-thiazol-4-yl}benzenecarboxylate (CAS 250713-85-0)
- Relugolix Impurity 171 (CAS CATO-C4X-2429171)
- 1-(2-(Trifluoromethyl)phenyl)-1h-pyrazol-5-amine (CAS 1349717-35-6)
- 1,3-Bis(trifluoromethyl)-2-(difluoromethoxy)-5-ethylbenzene (CAS 1805084-35-8)
- 933220-17-8 1-Ethyl-5-(2-hydroxyphenyl)-1H-pyrrole-2,4-dicarboxylic acid MFCD14281982 (CAS 933220-17-8)
- Ethyl 2-amino-5-ethylbenzoate (CAS 832732-67-9)
- Hydroxy Saxagliptin-13C3 (CAS 1346597-23-6)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com