8-Ethoxycarbonyl-6-methoxy-7-methylpyrrolo[2,3-e]benzofurazan-3-oxide CAS 257869-86-6
| CAS No. | 257869-86-6 |
| Molecular Formula | C13H13N3O5 |
| Molecular Weight | 291.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 8-Ethoxycarbonyl-6-methoxy-7-methylpyrrolo[2,3-e]benzofurazan-3-oxide.
8-Ethoxycarbonyl-6-methoxy-7-methylpyrrolo[2,3-e]benzofurazan-3-oxide (CAS 257869-86-6) is a high-purity analytical reference standard with the molecular formula C13H13N3O5 and a molecular weight of 291.26 g/mol.
8-Ethoxycarbonyl-6-methoxy-7-methylpyrrolo[2,3-e]benzofurazan-3-oxide (C13H13N3O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 8-Ethoxycarbonyl-6-methoxy-7-methylpyrrolo[2,3-e]benzofurazan-3-oxide 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 | C13H13N3O5 |
| Molecular Weight | 291.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- Ethyl 2-(7-nitro-1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl)-2-oxoacetate (CAS 503553-86-4)
- 2-((1-Phenylpropyl)amino)ethanol (CAS 81133-69-9)
- 3-(4-Ethyl-5-{[(4-methylphenyl)methyl]sulfanyl}-4H-1,2,4-triazol-3-yl)-1-phenyl-1,4-dihydropyridazin-4-one (CAS 478063-59-1)
- 4-Methyl-1,8-naphthyridin-2-ol (CAS 889940-20-9)
- 5-(Bromomethyl)-3-(2,4-dichlorophenyl)-1,2-oxazole (CAS 5301-00-8)
- 3,5-Dimethyl-1,2,4-triazin-6-amine (CAS 383398-95-6)
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- (R)-tert-Butyl 3-(2-fluoro-6-nitrophenoxy)pyrrolidine-1-carboxylate (CAS 1233860-17-7)
- Ethyl 5-formyl-6-phenylimidazo[2,1-b]thiazole-3-carboxylate (CAS 752244-07-8)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
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