7-Methoxy-2H-benzo[e][1,3]oxazine-2,4(3H)-dione CAS 37895-24-2
| CAS No. | 37895-24-2 |
| Molecular Formula | C9H7NO4 |
| Molecular Weight | 193.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 7-Methoxy-2H-benzo[e][1,3]oxazine-2,4(3H)-dione (C9H7NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 193.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
7-Methoxy-2H-benzo[e][1,3]oxazine-2,4(3H)-dione (CAS 37895-24-2), molecular formula C9H7NO4 and molecular weight 193.16 g/mol, is a CATO reference standard with documented purity and traceability.
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), 7-Methoxy-2H-benzo[e][1,3]oxazine-2,4(3H)-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 | C9H7NO4 |
| Molecular Weight | 193.16 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.) | 1967 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 6-Methoxy-4-nitro-1H-indazole (CAS 1000341-08-1)
- 5-Methoxy-benzo[d]isoxazole-3-carboxylic acid (CAS 108805-39-6)
- 7-Methoxy-3-nitro-1H-pyrrolo[3,2-b]pyridine (CAS 1116136-57-2)
- 3-Methoxy-5-nitro-1H-indazole (CAS 1118574-49-4)
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- 7-Methoxy-3-nitro-1H-pyrrolo[2,3-c]pyridine (CAS 1190314-26-1)
- 4-Methoxy-3-nitro-1H-pyrrolo[2,3-b]pyridine (CAS 1190314-57-8)
Recommended Standards
- 7-Hydroxy-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 739365-03-8)
- 7-Methoxy-2-nitrobenzofuran (CAS 30335-71-8)
- 6-Nitrochroman-4-one (CAS 68043-53-8)
- 7-Methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 675830-69-0)
- 3-(4-(Chloromethyl)phenyl)isoxazole (CAS 1187532-70-2)
- Dichloralphenazone (CAS 480-30-8)
- 6-Chloro-3-indolyl beta-D-ribofuranoside (CAS 518033-36-8)
- 1-Hydroxy-5-methylindolin-2-one (CAS 131388-00-6)
- 8-Ethynylimidazo[1,5-a]pyridine (CAS 2648259-88-3)
- 4,4'-DDT (CAS 50-29-3)
- 4-Amino-2-nitrodiphenyl sulphone (CAS 1017059-70-9)
- 4-Ethoxyphenyl 4-hydroxybenzoate (CAS 50687-63-3)
- Isochroman-6-ol (CAS 412338-41-1)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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