8-Hydroxyquinoline-5,7-disulfonic acid CAS 31568-84-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 31568-84-0 |
| Molecular Formula | C9H7NO7S2 |
| Molecular Weight | 305.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Hydroxyquinoline-5,7-disulfonic acid (CAS 31568-84-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H7NO7S2. Molecular weight: 305.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H7NO7S2 |
| Molecular Weight | 305.28 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 7-(Diethylamino)-2-oxo-2H-chromene-3,4-dicarboxylic acid (CAS 75240-77-6)
- AS-252424 (CAS 900515-16-4)
- 4-Hydroxy-3-phenyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (CAS 62668-78-4)
- Ethyl 3-(4-chlorophenyl)-1,2,4-thiadiazole-5-carboxylate (CAS 61689-39-2)
- 4-Nitro-3-phenyl-5-(p-tolyl)isoxazole (CAS 66692-96-4)
- 4-{[(4-fluorophenyl)amino]methyl}piperidin-4-ol (CAS 1330583-68-0)
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- Spectinomycin EP Impurity B DiHCl (CAS CATO-C4X-22167)
- 2-Propanone,1,1,1,3,3,3-hexabromo- 23162-64-3 CTK4F1011 (CAS 23162-64-3)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
Why CATO?
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