4-[(3-nitrobenzenesulfonyl)oxy]benzoic acid CAS 568543-73-7
| CAS No. | 568543-73-7 |
| Molecular Formula | C13H9NO7S |
| Molecular Weight | 323.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-[(3-nitrobenzenesulfonyl)oxy]benzoic acid (CAS 568543-73-7), a certified reference material (molecular formula C13H9NO7S, MW 323.28 g/mol) for analytical method development and quality control.
Structurally, 4-[(3-nitrobenzenesulfonyl)oxy]benzoic acid (C13H9NO7S) contains a nitrogen-containing heterocyclic scaffold, 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 323.28 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.
CATO manufactures 4-[(3-nitrobenzenesulfonyl)oxy]benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H9NO7S |
| Molecular Weight | 323.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1984 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related nitrobenzenesulfonyl Standards
- 1-(2-Methyl-5-nitrobenzenesulfonyl)piperidine-4-carboxylic acid (CAS 722473-59-8)
- 1-(4-Nitrobenzenesulfonyl)piperidine-2-carboxylic acid (CAS 498531-42-3)
- 1-(4-Nitrobenzenesulfonyl)piperidine-3-carboxylic acid (CAS 321970-62-1)
- 1-(4-Nitrobenzenesulfonyl)piperidine-4-carboxylic acid (CAS 331828-49-0)
- 4-[(2-methyl-5-nitrobenzenesulfonyl)oxy]benzoic acid (CAS 749216-12-4)
- 1-(4-Nitrobenzenesulfonyl)pyrrolidine-2-carboxylic acid (CAS 1375313-81-7)
- 1-(3-Nitrobenzenesulfonyl)pyrrolidine-2-carboxylic acid (CAS 67320-37-0)
- 4-(2-Nitrobenzenesulfonyl)piperazine-1-carbaldehyde (CAS 866152-60-5)
Recommended Standards
- 3-Nitro-N-(2-nitrophenyl)benzenesulfonamide (CAS 873985-57-0)
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- 2-Nitro-N-(2-nitrophenyl)benzenesulfonamide (CAS 331256-09-8)
- ((2-(Trifluoromethyl)phenyl)sulfonyl)proline (CAS 1009665-11-5)
- 3,4-Dehydro-L-proline methyl ester hydrochloride (CAS 51827-12-4)
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- 2-Methoxy-5-(pyrrolidin-1-ylsulfonyl)benzoic acid (CAS 89704-51-8)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com