Ethyl 5-(4-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylate CAS 99367-44-9
| CAS No. | 99367-44-9 |
| Molecular Formula | C12H12N2O4 |
| Molecular Weight | 248.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H12N2O4, Ethyl 5-(4-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.23 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).
Ethyl 5-(4-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylate (CAS 99367-44-9), molecular formula C12H12N2O4 and molecular weight 248.23 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O4 |
| Molecular Weight | 248.23 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- Ethyl 5-(3-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylate (CAS 1018143-62-8)
- 1-[2-(4-methoxyphenyl)ethyl]imidazolidine-2,4,5-trione (CAS 1094408-14-6)
- Ethyl 5-(2-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylate (CAS 1260664-50-3)
- 1-(4-Methoxyphenyl)-5-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid (CAS 14058-87-8)
- (E)-2-(3-(3-Methoxyphenyl)allylidene)malonicacid (CAS 14160-39-5)
- Ethyl 5-(4-methoxyphenyl)-1,2,4-oxadiazole-3-carboxylate (CAS 151098-14-5)
- 3-(3-(3-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 500026-33-5)
- 6-(4-Methoxyphenyl)-2-oxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid (CAS 477848-92-3)
Recommended Standards
- Ethyl 4-methyl-7-nitro-1H-indole-2-carboxylate (CAS 61149-52-8)
- Ethyl 5-methoxy-2-oxo-2H-chromene-3-carboxylate (CAS 70160-49-5)
- Ethyl 4-hydroxy-6-methoxy-1,5-naphthyridine-3-carboxylate (CAS 53241-92-2)
- ETHYL 5-METHOXY-4-OXO-4H-CHROMENE-2-CARBOXYLATE (CAS 5527-76-4)
- N-(Allyloxycarbonyloxy)succinimide (CAS 135544-68-2)
- 1,3-Dimethyl 2-[2-nitro-5-(trifluoromethyl)phenyl]propanedioate (CAS 866039-51-2)
- 5,6-Dimethyl-1H-benzo[d]imidazol-2(3H)-one (CAS 2033-30-9)
- 2-n,2-n-Dimethyl-1,3-benzoxazole-2,5-diamine (CAS 1175645-00-7)
- β-D-Galactose (CAS 7296-64-2)
- 4-Bromo-N-(4-isopropoxyphenyl)aniline (CAS 904962-23-8)
- Bexagliflozin Impurity 8 (CAS CATO-C4X-33228)
- 1-(4,4-Dimethyl-2-thioxooxazolidin-3-yl)propan-1-one (CAS 115026-48-7)
- 2-(2-(Phenylsulfonyl)ethylthio)nicotinic acid (CAS 175203-21-1)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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