1-Methyl-6-nitro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione CAS 4693-01-0
| CAS No. | 4693-01-0 |
| Molecular Formula | C9H6N2O5 |
| Molecular Weight | 222.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Methyl-6-nitro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione (CAS 4693-01-0), molecular formula C9H6N2O5 and molecular weight 222.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H6N2O5, 1-Methyl-6-nitro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione 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 222.15 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).
As a certified reference material (CRM), 1-Methyl-6-nitro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione 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 | C9H6N2O5 |
| Molecular Weight | 222.15 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.) | 1958 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
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Recommended Standards
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- 3-Butyl-1-methyl-1H-imidazol-3-ium hydroxide (CAS 528818-81-7)
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- Pyranocumarin (CAS 518-20-7)
- (2E)-3-(1-benzyl-3-thien-2-yl-1H-pyrazol-4-yl)acrylic acid (CAS 1006463-87-1)
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