2U62Q3CF4S 4533-96-4 4-Chloro-2-nitrophenylsulphonyl chloride EINECS 224-875-5 UNII-2U62Q3CF4S 4-Chloro-2-nitrophenylsulfonyl chloride CAS 4533-96-4
| CAS No. | 4533-96-4 |
| Molecular Formula | C6H9Cl2NO4S |
| Molecular Weight | 262.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2U62Q3CF4S 4533-96-4 4-Chloro-2-nitrophenylsulphonyl chloride EINECS 224-875-5 UNII-2U62Q3CF4S 4-Chloro-2-nitrophenylsulfonyl 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.
2U62Q3CF4S 4533-96-4 4-Chloro-2-nitrophenylsulphonyl chloride EINECS 224-875-5 UNII-2U62Q3CF4S 4-Chloro-2-nitrophenylsulfonyl chloride (CAS 4533-96-4), molecular formula C6H9Cl2NO4S and molecular weight 262.11 g/mol, is a CATO reference standard with documented purity and traceability.
2U62Q3CF4S 4533-96-4 4-Chloro-2-nitrophenylsulphonyl chloride EINECS 224-875-5 UNII-2U62Q3CF4S 4-Chloro-2-nitrophenylsulfonyl chloride (C6H9Cl2NO4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, 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.
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 | C6H9Cl2NO4S |
| Molecular Weight | 262.11 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Phenylacetic acid-3-boronic acid pinacol ester (CAS 797755-05-6)
- Pomalidomide Impurity 48 (CAS CATO-C4X-135448)
- N-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinamide (CAS 2096342-24-2)
- Methyl 3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Benzoate (CAS 480425-35-2)
- 3-(2-Chloropyridin-4-yl)acrylic acid (CAS 1379423-73-0)
- 2-Methyl-1-(2-phenoxyethyl)piperazine (CAS 1240573-26-5)
- [1,1'-Bi(cyclopropan)]-1-amine hydrochloride (CAS 882402-13-3)
- 4-Bromo-1-(1,1-difluoroethyl)-2-fluorobenzene (CAS 1823231-42-0)
- 1-(2-(Bromomethyl)pyrrolidin-1-yl)ethan-1-one (CAS 1353954-90-1)
- 2,4-Dichlorobenzyl (1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)carbamate (CAS 477709-57-2)
- 4-(3-Piperidin-1-ylpropoxy)benzoic acid hydrochloride (CAS 685565-09-7)
- L-Glucaric Acid (CAS 5627-26-9)
- 1-Bromo-2-methyl-3-(methylsulfonyl)benzene (CAS 871352-94-2)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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