3-Chloro-4-nitrobenzenesulfonamide CAS 93745-74-5
| CAS No. | 93745-74-5 |
| Molecular Formula | C6H5ClN2O4S |
| Molecular Weight | 236.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-Chloro-4-nitrobenzenesulfonamide (C6H5ClN2O4S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Chloro-4-nitrobenzenesulfonamide (CAS 93745-74-5) is a high-purity analytical reference standard with the molecular formula C6H5ClN2O4S and a molecular weight of 236.63 g/mol.
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 manufactures 3-Chloro-4-nitrobenzenesulfonamide 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 | C6H5ClN2O4S |
| Molecular Weight | 236.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-6-fluoro-7-methoxyquinoline-3-carbonitrile (CAS 1017788-78-1)
- 4-Chloro-6-fluoro-8-methoxyquinoline-3-carbonitrile (CAS 1247810-29-2)
- 4-Chloro-2-nitrobenzene-1-sulfonamide (CAS 13852-81-8)
- 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carbonitrile 3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarbonitrile 175204-41-8 (CAS 175204-41-8)
- 4-Chloro-8-fluoro-6-methoxyquinoline-3-carbonitrile (CAS 1823500-08-8)
- 2-Chloro-4-nitrobenzenesulfonamide (CAS 31150-99-9)
- 2-Chloro-5-nitrobenzenesulfonamide (CAS 96-72-0)
- 2-Chloro-5-sulfobenzoic acid (CAS 40284-70-6)
Recommended Standards
- 3-(Chlorosulfonyl)-4-hydroxybenzoic acid (CAS 77719-02-9)
- 4-(Chlorosulfonyl)-2-hydroxybenzoic acid (CAS 98273-15-5)
- 2-Chloro-6-nitrobenzene-1-sulfonamide (CAS 89581-71-5)
- 4-Amino-3-nitrobenzene-1-sulfonyl chloride (CAS 84202-56-2)
- 8-(Bromomethyl)-2,2,6-trimethyl-4H-benzo[d][1,3]dioxin-4-one (CAS 1956322-90-9)
- 1-Acetylpiperidine-2-carbothioamide (CAS 1485857-97-3)
- 1-(4-Hydroxy-[1,1'-biphenyl]-3-yl)propan-1-one (CAS 92-08-0)
- 7-Bromo-6-(chloromethyl)-1H-benzo[d]imidazole (CAS 1803894-71-4)
- tert-Butyl 7-formyl-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (CAS 1251165-23-7)
- bis(3,4,5-trifluorophenyl)methanol (CAS 361376-64-9)
- 1,3-Dichloro-5-dichloromethyl-benzene (CAS 56961-85-4)
- 2-(5-Bromo-2-fluoro-3-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1638847-72-9)
- 2-(tErt-butylcarbamoyl)benzoic acid (CAS 20320-35-8)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
Why CATO?
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