5-(Chlorosulfonyl)-2-nitrobenzoic acid CAS 98555-64-7
| CAS No. | 98555-64-7 |
| Molecular Formula | C7H4ClNO6S |
| Molecular Weight | 265.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(Chlorosulfonyl)-2-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.
5-(Chlorosulfonyl)-2-nitrobenzoic acid (CAS 98555-64-7), molecular formula C7H4ClNO6S and molecular weight 265.63 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(Chlorosulfonyl)-2-nitrobenzoic acid (C7H4ClNO6S) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H4ClNO6S |
| Molecular Weight | 265.63 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) | 6.0 |
| 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 Chlorosulfonyl Standards
- 3-(Chlorosulfonyl)-2-nitrobenzoic acid (CAS 1864062-56-5)
- 3-(chlorosulfonyl)-4-nitrobenzoic acid (CAS 871243-31-1)
- 3-(Chlorosulfonyl)-5-nitrobenzoic acid (CAS 860596-66-3)
- 4-(Chlorosulfonyl)-2-nitrobenzoic Acid (CAS 54090-40-3)
- 4-(chlorosulfonyl)-3-nitrobenzoic acid (CAS 32571-65-6)
- Methyl 2-(chlorosulfonyl)-6-methoxyisonicotinate (CAS 1393547-64-2)
- Methyl 4-(chlorosulfonyl)-6-methoxypicolinate (CAS 1393560-70-7)
- Ethyl 4-(chlorosulfonyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate (CAS 368869-88-9)
Recommended Standards
- 4-(3-chloro-4-fluorophenoxy)-3-fluorobenzonitrile (CAS 1410890-97-9)
- 2-(Chloromethyl)-3-(difluoromethyl)-5-methoxypyridine-4-acetic acid (CAS 1804868-96-9)
- 2-(Chloromethyl)-6-(difluoromethyl)-4-methoxypyridine-3-acetic acid (CAS 1805615-02-4)
- 2-(Chloromethyl)-6-(difluoromethyl)-3-methoxypyridine-4-acetic acid (CAS 1806885-29-9)
- 1-Boc-4-[(1-methyl-4-piperidyl)methyl]piperidine (CAS 879883-64-4)
- 3-(Morpholin-4-yl)-1,2,4-thiadiazol-5-amine (CAS 138588-29-1)
- 4-((4-Amino-5,6-dichloropyrimidin-2-yl)amino)benzonitrile (CAS 269055-73-4)
- 1-(Bromomethyl)-1-cyclobutoxycyclohexane (CAS 1247918-31-5)
- 4-(2-Fluorophenyl)-5-(methylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1447958-48-6)
- 3-Chloro-2-trifluoromethylbenzoyl chloride (CAS 1228898-66-5)
- 3-Methyl-[1,2,4]triazolo[4,3-a]pyridine-7-thiol (CAS 762272-56-0)
- rel-2-Methoxycyclopropanamine (hydrochloride) (CAS 2215117-52-3)
- 3-Fluoro-4-(1,1,1,3,3,3-hexafluoropropan-2-yloxy)nitrobenzene 1779118-72-7 (CAS 1779118-72-7)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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