2,3-Dichloro-5-nitrobenzene-1-sulfonyl chloride CAS 1247801-40-6
| CAS No. | 1247801-40-6 |
| Molecular Formula | C6H2Cl3NO4S |
| Molecular Weight | 290.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 290.51 g/mol gives 2,3-Dichloro-5-nitrobenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2,3-Dichloro-5-nitrobenzene-1-sulfonyl chloride (CAS 1247801-40-6), a certified reference material (molecular formula C6H2Cl3NO4S, MW 290.51 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H2Cl3NO4S, 2,3-Dichloro-5-nitrobenzene-1-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,3-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1803801-58-2)
- 3,6-Dichloro-2-nitrobenzenesulfonyl chloride (CAS 1803801-62-8)
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- 3,5-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1803845-82-0)
- 3,4-Dichloro-5-nitrobenzenesulfonyl chloride (CAS 1804897-25-3)
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- 2,5-Dichloro-4-nitrobenzenesulfonyl chloride (CAS 1806356-63-7)
- 3,5-Dichloro-2-nitrobenzenesulfonyl chloride (CAS 1807181-19-6)
Recommended Standards
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- 4-Bromo-2-methylaniline, N-BOC protected (CAS 306937-14-4)
- 2-[(2,5-dichlorophenyl)thio]acetohydrazide (CAS 325700-69-4)
- 5,5,6,6,7,7,7-Heptafluoro-4,4-bis(trifluoromethyl)heptanoic acid (CAS 129991-14-6)
- 5-Methyl-2-(2,2,2-trifluoroethoxy)-benzylamine (CAS 1342384-59-1)
- 3-Cyclopropylpyrrolidin-3-ol (CAS 1493020-19-1)
- Des-Lys16-Tirzepatide (CAS CATO-CPTD788957)
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