1-(5-Nitrobenzo[d]oxazol-2-yl)ethanone CAS 1803815-36-2
| CAS No. | 1803815-36-2 |
| Molecular Formula | C9H6N2O4 |
| Molecular Weight | 206.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(5-Nitrobenzo[d]oxazol-2-yl)ethanone (CAS 1803815-36-2) is a high-purity analytical reference standard with the molecular formula C9H6N2O4 and a molecular weight of 206.15 g/mol.
Based on its molecular formula C9H6N2O4, 1-(5-Nitrobenzo[d]oxazol-2-yl)ethanone 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 206.15 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).
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.
As a certified reference material (CRM), 1-(5-Nitrobenzo[d]oxazol-2-yl)ethanone 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 | C9H6N2O4 |
| Molecular Weight | 206.15 g/mol |
| Appearance | Pale yellow to 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 |
| 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.) | 1995 |
| Nitrogen Atoms | 2 |
Related Nitrobenzo Standards
- 1-(7-Nitrobenzo[d]oxazol-2-yl)ethanone (CAS 1552671-67-6)
- 1-(4-Nitrobenzo[d]oxazol-2-yl)ethanone (CAS 1555543-07-1)
- 4-Nitrobenzo[d]thiazole-2-carbonitrile (CAS 1597432-57-9)
- 6-nitrobenzo[d]thiazole-2-carbonitrile (CAS 188672-83-5)
- 5-Nitrobenzo[d]thiazole-2-carbonitrile (CAS 188672-84-6)
- 7-Nitrobenzo[d]thiazole-2-carbonitrile (CAS 188672-86-8)
- 7-Nitrobenzo[b]thiophene-3-carbaldehyde (CAS 109771-38-2)
- 5-Nitrobenzo[b]thiophene-2-carbaldehyde (CAS 4688-16-8)
Recommended Standards
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- Methyl 2-cyano-4-nitrobenzoate (CAS 1804177-30-7)
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- Manganese (III) phosphate xhydrate (CAS 104663-56-1)
- 2-(7-Bromo-1h-indol-3-yl)ethan-1-amine (CAS 40619-69-0)
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