7-Nitro-1H-benzo[d][1,3]oxazin-2(4H)-one CAS 1042972-63-3
| CAS No. | 1042972-63-3 |
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Nitro-1H-benzo[d][1,3]oxazin-2(4H)-one 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.
7-Nitro-1H-benzo[d][1,3]oxazin-2(4H)-one (CAS 1042972-63-3), molecular formula C8H6N2O4 and molecular weight 194.14 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7-Nitro-1H-benzo[d][1,3]oxazin-2(4H)-one (C8H6N2O4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 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, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
Related Nitro Standards
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