3-Chloro-5-fluoro-4-methoxybenzenesulfonyl chloride CAS 1706458-23-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1706458-23-2 |
| Molecular Formula | C7H5Cl2FO3S |
| Molecular Weight | 259.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-5-fluoro-4-methoxybenzenesulfonyl chloride (CAS 1706458-23-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H5Cl2FO3S. Molecular weight: 259.08 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H5Cl2FO3S |
| Molecular Weight | 259.08 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-Bromothiazolo[4,5-b]pyridine-2-carboxylic acid (CAS 1780212-82-9)
- 1-(4-Bromo-2-fluorophenyl)imidazolidin-2-one (CAS 160132-29-6)
- 5-Bromoisothiazolo[5,4-b]pyridine-3-carboxylic acid (CAS 1782251-89-1)
- 1,4,5-Triamino-2,6-bis(2,5-dichlorophenoxy)anthracene-9,10-dione (CAS 88600-50-4)
- 3-[1-[Difluoro[(Trifluoroethenyl)Oxy]Methyl]-1,2,2,2-Tetrafluoroethoxy]-2,2,3,3-Tetrafluoropropanamide (CAS 69804-18-8)
- 1-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)-3-phenyl-1H-pyrazol-5(4H)-one (CAS 102689-15-6)
- 1-(1-Methyl-3-phenylpiperazin-2-yl)ethanone (CAS 960403-88-7)
- 2-(2-Bromo-5-chlorophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 2137032-39-2)
- 3-(3-(4-(1H-Pyrrol-1-yl)phenyl)-2-oxoimidazolidin-1-yl)benzoic acid (CAS 651748-87-7)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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