2,6-Dichloro-3-nitrobenzenesulfonyl chloride CAS 276702-53-5
| CAS No. | 276702-53-5 |
| Molecular Formula | C6H2Cl3NO4S |
| Molecular Weight | 290.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,6-Dichloro-3-nitrobenzenesulfonyl chloride (CAS 276702-53-5), molecular formula C6H2Cl3NO4S and molecular weight 290.51 g/mol, is a CATO reference standard with documented purity and traceability.
2,6-Dichloro-3-nitrobenzenesulfonyl chloride (C6H2Cl3NO4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 2,6-Dichloro-3-nitrobenzenesulfonyl 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.
Physical & Chemical Properties
| Molecular Formula | C6H2Cl3NO4S |
| Molecular Weight | 290.51 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 | 1 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,3-Dichloro-5-nitrobenzene-1-sulfonyl chloride (CAS 1247801-40-6)
- 2,3-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1803801-58-2)
- 3,6-Dichloro-2-nitrobenzenesulfonyl chloride (CAS 1803801-62-8)
- 2,3-Dichloro-6-nitrobenzenesulfonyl chloride (CAS 1803838-57-4)
- 3,5-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1803845-82-0)
- 3,4-Dichloro-5-nitrobenzenesulfonyl chloride (CAS 1804897-25-3)
- 3,4-Dichloro-2-nitrobenzenesulfonyl chloride (CAS 1806289-34-8)
- 2,5-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1806356-63-7)
Recommended Standards
- 2,4-dichloro-6-nitrobenzene-1-sulfonyl chloride (CAS 568586-12-9)
- 2,6-Dichloro-4-nitrobenzene-1-sulfonyl chloride (CAS 74875-17-5)
- 2,4-dichloro-5-nitrobenzene-1-sulfonyl chloride (CAS 949-30-4)
- Dodecyltrimethoxysilane (CAS 3069-21-4)
- 4-Methoxy-1,3,5-triazin-2-amine (CAS 1122-73-2)
- N-(4-Methoxyphenyl)furan-2-carboxamide (CAS 1982-65-6)
- SCH 221510 (CAS 322473-89-2)
- 8-(4-Ethoxyphenyl)-2-methyl-4,7-dioxo-5-phenyl-1,4,7,8-tetrahydropyrido[2,3-d]pyrimidine-6-carbonitrile (CAS 912966-14-4)
- tert-Butyl 2-(3-bromophenyl)acetate (CAS 197792-52-2)
- Ethyl 4'-(octyloxy)-[1,1'-biphenyl]-4-carboxylate (CAS 61922-31-4)
- N-Desethyl-N-Methyl Vardenafil (CAS 224785-87-9)
- Mildronate-D3 HCl (CAS CATO-CCHM706023)
- 3,4-Difluorobenzenesulfonic acid (CAS 1185115-56-3)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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