2,4-Difluoro-5-nitrobenzene-1-sulfonyl chloride CAS 1780-83-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1780-83-2 |
| Molecular Formula | C6H2ClF2NO4S |
| Molecular Weight | 257.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Difluoro-5-nitrobenzene-1-sulfonyl chloride (CAS 1780-83-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H2ClF2NO4S. Molecular weight: 257.60 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H2ClF2NO4S |
| Molecular Weight | 257.60 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.) | 1957 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Difluoro Standards
- 2,3-Difluoro-5-nitrobenzene-1-sulfonyl chloride (CAS 1156136-97-8)
- 2,6-Difluoro-4-nitrobenzene-1-sulfonyl chloride (CAS 1193388-31-6)
- 4,5-Difluoro-2-nitrobenzene-1-sulfonyl chloride (CAS 1394083-84-1)
- 3,4-Difluoro-5-nitrobenzene-1-sulfonyl chloride (CAS 1803826-81-4)
- 3,5-Difluoro-4-nitrobenzenesulfonyl chloride (CAS 1803870-67-8)
- 2,5-Difluoro-4-nitrobenzenesulfonyl chloride (CAS 1806289-42-8)
- 7,8-Difluoro-2-methoxyquinoline-4-carbonyl chloride (CAS 1125702-48-8)
- 6-(2,2-Difluoro-2-phenylethoxy)hexan-1-amine (CAS 915132-93-3)
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