6-Chloro-2-hydroxy-3-nitrobenzenesulfonamide CAS 276702-19-3
| CAS No. | 276702-19-3 |
| Molecular Formula | C6H5ClN2O5S |
| Molecular Weight | 252.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-Chloro-2-hydroxy-3-nitrobenzenesulfonamide (CAS 276702-19-3), a certified reference material (molecular formula C6H5ClN2O5S, MW 252.63 g/mol) for analytical method development and quality control.
Structurally, 6-Chloro-2-hydroxy-3-nitrobenzenesulfonamide (C6H5ClN2O5S) contains a carbohydrate-derived structure, an amide group, a sulfone group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 252.63 g/mol, it falls into the medium-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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-Chloro-2-hydroxy-3-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 | C6H5ClN2O5S |
| Molecular Weight | 252.63 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- 2,4,6-Tribromothiophenol (CAS 57730-98-0)
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- 4-Cyclopropylbenzamide (CAS 1129-08-4)
- (triphenylphosphine)acetonitrile (CAS 16640-68-9)
- Phenylephrine Impurity 52 (CAS 1785420-81-6)
- 5-((2-Carbamoylphenyl)amino)-5-oxopentanoic acid (CAS 197236-49-0)
- (R)-Benzyl 2-amino-4-methylpentanoate hydrochloride (CAS 68838-94-8)
- 2-(8-Methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)-N-(p-tolyl)acetamide (CAS 743470-31-7)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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