2-[(4-Chlorophenyl)sulfonyl]-5-nitrobenzoic acid CAS 99768-25-9
| CAS No. | 99768-25-9 |
| Molecular Formula | C13H8ClNO6S |
| Molecular Weight | 341.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-[(4-Chlorophenyl)sulfonyl]-5-nitrobenzoic 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.
2-[(4-Chlorophenyl)sulfonyl]-5-nitrobenzoic acid (CAS 99768-25-9), molecular formula C13H8ClNO6S and molecular weight 341.72 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-[(4-Chlorophenyl)sulfonyl]-5-nitrobenzoic acid (C13H8ClNO6S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H8ClNO6S |
| Molecular Weight | 341.72 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 3-(3-(2-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-6-fluoroquinolin-4(1H)-one (CAS 1081119-02-9)
- (2-Chlorophenyl)(3-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone (CAS 1323707-27-2)
- 3-((4-Chlorophenyl)(2-(trifluoromethyl)phenyl)methoxy)azetidine (CAS 791848-72-1)
- 3-(5-(2-Chlorophenyl)furan-2-yl)-N-(2-fluorophenyl)acrylamide (CAS 853348-40-0)
- 3-(5-(2-Chlorophenyl)furan-2-yl)-N-(4-fluorophenyl)acrylamide (CAS 853348-41-1)
- 2-(4-Chlorophenyl)-5-nitro-3-(trifluoromethyl)benzofuran (CAS 821770-05-2)
- 4-(2-(2-(2-Chlorophenyl)-5-methyloxazol-4-yl)ethoxy)benzaldehyde (CAS 103789-58-8)
- 1306753-59-2 1-{2-(4-Chlorophenyl)-7-[(E)-2-(dimethylamino)vinyl][1,2,4]triazolo[1,5-a]pyrimidin-6-yl}ethanone MFCD19103624 (CAS 1306753-59-2)
Recommended Standards
- Diiodo(phenyl)borane (CAS 17381-60-1)
- 3-Chloro-5-(2-methoxyphenyl)-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 678560-80-0)
- 3-Chloro-5-(3-methoxyphenyl)-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 740837-57-4)
- (2E)-N-(4-Chlorophenyl)-3-[4-(trifluoromethoxy)phenyl]prop-2-enamide (CAS 260555-67-7)
- (S)-1-((R)-1-methylpyrrolidin-2-yl)ethan-1-ol (CAS 64845-16-5)
- 5-(Aminomethyl)thiazol-2-amine (CAS 625440-80-4)
- 2,3-difluoro-4-methoxy-pyridine (CAS 1227578-88-2)
- [1-(2-Amino-acetyl)-piperidin-2-ylmethyl]-cyclopropyl-carbamic acid benzyl ester (CAS 1353987-76-4)
- 2,6-Dimethylphenyl 2-((5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)acetate (CAS 332126-69-9)
- n-(3-Aminophenyl)cyclohexanecarboxamide (CAS 43096-46-4)
- Methyl 2-(benzyloxy)-3-bromo-5-methylbenzoate (CAS 2432848-62-7)
- 20β-Dihydrocortisone (CAS 116-59-6)
- 2-(1,3-Dioxan-2-ylethyl)benzonitrile (CAS 951890-27-0)
- Anxiety Peptide (CAS 95237-86-8)
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