4-Fluorobenzenesulfonic acid hydrate CAS 1186663-24-0
| CAS No. | 1186663-24-0 |
| Molecular Formula | C6H5FO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Fluorobenzenesulfonic acid hydrate (CAS 1186663-24-0), molecular formula C6H5FO3SH2O and molecular weight 194.18 g/mol, is a CATO reference standard with documented purity and traceability.
4-Fluorobenzenesulfonic acid hydrate (C6H5FO3SH2O) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 4-Fluorobenzenesulfonic acid hydrate 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 | C6H5FO3S H2O |
| Molecular Weight | 194.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluorobenzenesulfonic Standards
Recommended Standards
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- 4-[1-(4-methylbenzenesulfonyl)piperidin-4-yl]-1,3-thiazol-2-amine (CAS 926240-09-7)
- 5-(difluoromethyl)-1-phenyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1909306-03-1)
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- 2-(Methyl((3-methylthiophen-2-yl)methyl)amino)propanamide (CAS 1355457-36-1)
- 4-(Methylthio)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (CAS 1256813-30-5)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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