4-(Ethoxymethylene)-2-(naphthalen-1-yl)oxazol-5(4H)-one CAS 269733-57-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 269733-57-5 |
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Ethoxymethylene)-2-(naphthalen-1-yl)oxazol-5(4H)-one (CAS 269733-57-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H13NO3. Molecular weight: 267.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-(Benzyloxy)-1H-indole-7-carboxylic acid (CAS 2173992-25-9)
- 4,5-Dimethoxy-2-(2-methylpropanamido)benzoic acid (CAS 405898-41-1)
- 4-(5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)aniline (CAS 92554-86-4)
- Ethyl 6-amino-2-iodo-3-methylbenzoate (CAS 2091227-59-5)
- 2-Propenoic acid, 2-methyl-, 2-[(1,1-dimethylethyl)amino]ethyl ester, polymer with butyl 2-propenoate, 2-hydroxyethyl 2-propenoate and methyl 2-methyl-2-propenoate (CAS 57635-61-7)
- (3aR,6aS)-2-benzoyl-octahydropyrrolo[3,4-c]pyrrole hydrochloride (CAS 1694642-67-5)
- N,N-dimethyl-1,2,3,4-tetrahydroquinolin-6-amine (CAS 80279-77-2)
- 4-Fluoro-1H-indazol-5-amine (CAS 935250-69-4)
- 1-(3-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)isoxazol-5-yl)ethan-1-ol (CAS 477872-98-3)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
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