3-Chloro-2-cyanobenzene-1-sulfonyl chloride CAS 80023-25-2
| CAS No. | 80023-25-2 |
| Molecular Formula | C7H3Cl2NO2S |
| Molecular Weight | 236.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Chloro-2-cyanobenzene-1-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
3-Chloro-2-cyanobenzene-1-sulfonyl chloride (CAS 80023-25-2), molecular formula C7H3Cl2NO2S and molecular weight 236.08 g/mol, is a CATO reference standard with documented purity and traceability.
3-Chloro-2-cyanobenzene-1-sulfonyl chloride (C7H3Cl2NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H3Cl2NO2S |
| Molecular Weight | 236.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-6-cyanobenzene-1-sulfonyl chloride (CAS 1261499-21-1)
- 2-Chloro-3-cyanobenzene-1-sulfonyl chloride (CAS 1261851-22-2)
- 2-Chloro-4-cyanobenzenesulfonyl Chloride (CAS 254749-11-6)
- 2-Chloro-5-cyanobenzenesulfonyl Chloride (CAS 942199-56-6)
- 3-Chloro-4-cyanobenzenesulfonyl chloride (CAS 213130-43-9)
- 4-Chloro-3-cyanobenzene-1-sulfonyl chloride (CAS 56044-25-8)
- 5-Chloro-2-cyanobenzenesulfonyl Chloride (CAS 411210-92-9)
- 2-Chloro-n-(5-chloro-2-fluorophenyl)propanamide (CAS 1098361-04-6)
Recommended Standards
- 3-Amino-5-(t-butylaminocarbonyl)phenylboronic acid (CAS 2096337-97-0)
- 3-Amino-5-(butylcarbamoyl)phenylboronic acid (CAS 2096340-15-5)
- 3-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridazine (CAS 2474024-05-8)
- 3-Methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridazine (CAS 2173346-55-7)
- 2-Methyl-2-((thiophen-3-ylmethyl)amino)propan-1-ol (CAS 892592-48-2)
- (4-((2,3-Dihydroxypropoxy)methyl)phenyl)boronic acid (CAS 839705-15-6)
- 2-Nitro-1H-imidazol-1-amine (CAS 83279-42-9)
- N-(2-Methoxy-5-methylphenyl)-4-methylbenzenesulfonamide (CAS 116-41-6)
- 1-(4-Ethynyl-2-methoxyphenyl)-4-methyl-1H-Imidazole (CAS 1093980-57-4)
- 6-Chloro-3-methoxy-2-nitropyridine (CAS 1616526-81-8)
- 1-Hexyl-1h-1,2,4-triazol-3-amine (CAS 1178803-56-9)
- Doxorubicin Impurity 27 (CAS CATO-C4X-203327)
- 1-Icosyl-2-(3-(1-icosyl-3,3-dimethylindolin-2-ylidene)prop-1-en-1-yl)-3,3-dimethyl-3H-indol-1-ium iodide (CAS 75664-03-8)
- 110207-62-0 Acetyl-Cholecystokinin Octapeptide (2-8) (sulfated) MFCD00133565 (CAS 110207-62-0)
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