1-(3-ethyl-5-methyl-1,2-oxazol-4-yl)ethan-1-one CAS 79379-86-5
| CAS No. | 79379-86-5 |
| Molecular Formula | C8H11NO2 |
| Molecular Weight | 153.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 1-(3-ethyl-5-methyl-1,2-oxazol-4-yl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 153.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 1-(3-ethyl-5-methyl-1,2-oxazol-4-yl)ethan-1-one (CAS 79379-86-5), a certified reference material (molecular formula C8H11NO2, MW 153.18 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8H11NO2 |
| Molecular Weight | 153.18 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 |
| 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.) | 1979 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 1-(3-Ethyl-4-methylisoxazol-5-yl)ethanone (CAS 61858-84-2)
- 1-(3-Hydroxypropyl)-1,2-dihydropyridin-2-one (CAS 25514-24-3)
- 1-(3-Cyclopropylisoxazol-5-yl)ethanol (CAS 301168-24-1)
- 1-(3-Hydroxypropyl)-1H-pyrrole-2-carbaldehyde (CAS 84497-69-8)
- 1-benzyl 4-ethyl 4-methylpiperidine-1,4-dicarboxylate (CAS 203521-95-3)
- N-(7-methoxynaphthalen-1-yl)acetamide (CAS 93189-18-5)
- 4-(2-Methyl-4-nitrophenyl)morpholin-3-one (CAS 845729-40-0)
- 1-(2-Chloro-4-methylphenyl)urea (CAS 1038968-47-6)
- 1-Butyl-4-iodo-3-methyl-1H-pyrazole (CAS 1354705-53-5)
- 1-(3-((2-Aminoethyl)(methyl)amino)pyrrolidin-1-yl)ethanone (CAS 1353985-50-8)
- 2'-Fluoro-4'-methoxy-[1,1'-biphenyl]-3-amine (CAS 1184082-67-4)
- 3-Amino-1-(1-methylpiperidin-4-yl)pyridin-2(1h)-one (CAS 1443288-48-9)
- Methyl 3-iodothieno[2,3-b]pyridine-2-carboxylate (CAS 1822621-48-6)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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