N-Methoxy-4-nitrobenzenesulfonamide CAS 211675-81-9
| CAS No. | 211675-81-9 |
| Molecular Formula | C7H8N2O5S |
| Molecular Weight | 232.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, N-Methoxy-4-nitrobenzenesulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies N-Methoxy-4-nitrobenzenesulfonamide (CAS 211675-81-9), a certified reference material (molecular formula C7H8N2O5S, MW 232.21 g/mol) for analytical method development and quality control.
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), N-Methoxy-4-nitrobenzenesulfonamide 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 | C7H8N2O5S |
| Molecular Weight | 232.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related N Standards
- N-Methoxy-2-nitrobenzenesulfonamide (CAS 1061696-67-0)
- 2-Methoxy-3-nitrobenzene-1-sulfonamide (CAS 1261827-86-4)
- 2-methoxy-4-nitrobenzene-1-sulfonamide (CAS 746630-16-0)
- 2-Methoxy-5-nitrobenzenesulfonamide (CAS 82020-46-0)
- 3-Methoxy-4-nitrobenzene-1-sulfonamide (CAS 22117-82-4)
- 4-Methoxy-2-nitrobenzene-1-sulfonamide (CAS 81792-84-9)
- 4-Methoxy-3-nitrobenzene-1-sulfonamide (CAS 22939-93-1)
- 5-methoxy-2-nitrobenzene-1-sulfonamide (CAS 6451-49-6)
Recommended Standards
- N-methoxy-3-nitrobenzene-1-sulfonamide (CAS 304912-75-2)
- Phenyl 4-fluoropyridin-2-ylcarbamate (CAS 1989991-18-5)
- Nimesulide Impurity 2 (CAS 38880-53-4)
- Policresulen Impurity 14 (CAS 41481-17-8)
- Oxaprozin Impurity 1 (CAS 55217-15-7)
- 1-(2-Fluoroethyl)-3-methyl-1h-pyrazole (CAS 1427023-74-2)
- 4-({[(2-chlorophenyl)methyl]amino}methylidene)-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-69-2)
- Acetaldehyde ethyl cis-3-hexenyl acetal (CAS 28069-74-1)
- rac-(2R,3R)-3-phenyl-1,4-dioxane-2-carboxylic acid (CAS 1969287-91-9)
- N-(4-acetylphenyl)-2-(4-methoxyphenyl)acetamide (CAS 314766-89-7)
- 4-((4-(Imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)amino)benzenesulfonamide (CAS 328061-37-6)
- tert-Butyl 4-bromoazepane-1-carboxylate (CAS 1852254-64-8)
- Ethyl 3-bromo-4,9-dihydro-2H-4,9-ethanobenzo[f]isoindole-1-carboxylate (CAS 2768036-38-8)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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