4-Mercaptoquinoline-8-sulfonic acid CAS 71330-94-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 71330-94-4 |
| Molecular Formula | C9H7NO3S2 |
| Molecular Weight | 241.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Mercaptoquinoline-8-sulfonic acid (CAS 71330-94-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H7NO3S2. Molecular weight: 241.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H7NO3S2 |
| Molecular Weight | 241.29 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.) | 1977 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Mercaptoquinoline Standards
- 4-Mercaptoquinoline-3-sulfonic acid (CAS 502621-93-4)
- 5-Mercaptoquinoline-8-sulfonic acid (CAS 60999-28-2)
- 8-Mercaptoquinoline-5-sulfonic acid (CAS 5825-36-5)
- 8-Mercaptoquinoline-2,4-dicarboxylic acid (CAS 653570-20-8)
- 8-Mercaptoquinoline-4-carboxylic acid (CAS 121689-24-5)
- 3-Mercaptoquinoline-2-carboxylic acid (CAS 61830-01-1)
- 5-Mercaptoquinoline-6-carboxylic acid (CAS 873970-05-9)
- 8-Mercaptoquinoline-5-carboxylic acid (CAS 732219-03-3)
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