8-Hydroxyquinoline-5-sulfonic acid dihydrate CAS 89614-03-9
| CAS No. | 89614-03-9 |
| Molecular Formula | C9H7NO4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 8-Hydroxyquinoline-5-sulfonic acid dihydrate 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.
CATO supplies 8-Hydroxyquinoline-5-sulfonic acid dihydrate (CAS 89614-03-9), a certified reference material (molecular formula C9H7NO4SH2O, MW 243.23 g/mol) for analytical method development and quality control.
The molecular framework of 8-Hydroxyquinoline-5-sulfonic acid dihydrate (C9H7NO4SH2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7NO4S 2*H2O |
| Molecular Weight | 243.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxyquinoline Standards
- 3-Hydroxyquinoline-4-carbonitrile (CAS 100517-53-1)
- 7-Hydroxyquinoline-4-carboxylic acid (CAS 1017969-32-2)
- 8-hydroxyquinoline-4-carbonitrile (CAS 1025556-11-9)
- 8-Hydroxyquinoline-6-carbonitrile (CAS 1025556-12-0)
- 2-Hydroxyquinoline-7-carbonitrile (CAS 1033747-90-8)
- Ethyl 8-hydroxyquinoline-5-carboxylate (CAS 104293-76-7)
- Methyl 6-hydroxyquinoline-5-carboxylate (CAS 104612-29-5)
- 6-Hydroxyquinoline-5-carboxamide (CAS 104612-30-8)
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Why CATO?
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