4-Methoxy-N-[2-nitro-2-(phenylsulfonyl)vinyl]aniline CAS 321433-88-9
| CAS No. | 321433-88-9 |
| Molecular Formula | C15H14N2O5S |
| Molecular Weight | 334.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxy-N-[2-nitro-2-(phenylsulfonyl)vinyl]aniline (CAS 321433-88-9), molecular formula C15H14N2O5S and molecular weight 334.35 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Methoxy-N-[2-nitro-2-(phenylsulfonyl)vinyl]aniline (C15H14N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 334.35 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 4-Methoxy-N-[2-nitro-2-(phenylsulfonyl)vinyl]aniline 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 | C15H14N2O5S |
| Molecular Weight | 334.35 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 7-[1-({2-fluoro-[1,1'-biphenyl]-4-yl}oxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 477888-50-9)
- 3-(4-Fluorophenyl)-6-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 865657-97-2)
- 8-(MOrpholin-4-ylsulfonyl)-5h-[1,2,4]triazino[5,6-b]indol-3-amine (CAS 910443-22-0)
- 2-Cyano-N-(4-(N-(3,4-dimethylisoxazol-5-yl)sulfamoyl)phenyl)acetamide (CAS 546090-57-7)
- 6-Fluorobenzo[c][1,2,5]oxadiazol-5-amine (CAS 504417-84-9)
- (4-Methoxy-1-phenylnaphthalen-2-yl)methanol (CAS 76694-22-9)
- 4,5,6,7-tetrachloro-1H-indene-1,3(2H)-dione (CAS 30675-13-9)
- 1,2-Dimethyl-3-(4-((3-morpholinophenoxy)carbonyl)benzyl)-1H-imidazol-3-ium chloride (CAS 647825-29-4)
- 6-Fluoro-N,N-dimethylpyridine-3-carboxamide (CAS 1032251-82-3)
- 3-Chloro-4-ethoxy-5-isopropoxyphenylboronic acid (CAS 2096336-82-0)
- 1-tert-butyl 2-methyl 2-(2-oxoethyl)azetidine-1,2-dicarboxylate (CAS 1148044-27-2)
- 4-Bromo-2,5-dimethylpyridine 1-oxide (CAS 17117-24-7)
- 1-Azaspiro[4.4]nonane-2,4-dione (CAS 1803583-58-5)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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