8-Hydroxyquinoline-5-sulfonic acid hydrate CAS 283158-18-9
| CAS No. | 283158-18-9 |
| 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 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.
CATO supplies 8-Hydroxyquinoline-5-sulfonic acid hydrate (CAS 283158-18-9), a certified reference material (molecular formula C9H7NO4SH2O, MW 243.23 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H7NO4SH2O, 8-Hydroxyquinoline-5-sulfonic acid hydrate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H7NO4S 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.) | 2025 |
| 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)
Recommended Standards
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- 1-(tert-Butyl)-2-cyclopropoxy-3-(trifluoromethyl)benzene (CAS 1243285-97-3)
- 7-Chloro-1-(3-methoxyphenyl)-1-oxoheptane (CAS 898786-43-1)
- N-(2-hydroxyethyl)-N-methylcyclopropanesulfonamide (CAS 1409791-79-2)
- 3H-imidazo[4,5-c]pyridine-2-carbaldehyde (CAS 56805-25-5)
- 2-(Methylthio)-N-(4-(naphthalen-2-yl)thiazol-2-yl)nicotinamide (CAS 786717-94-0)
- 2-(Pentyloxy)benzoic acid (CAS 2200-82-0)
- N,N-Dimethyl-P-Phenylendiamine (CAS 99-98-9)
- 1,3-Dimethyl-7-(tetramethyl-1,3,2-dioxaborolan-2-yl)indazole (CAS 2304634-04-4)
- Peptide Impurity 04 (CAS 2913424-91-4)
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