8-Mercaptoquinoline CAS 491-33-8
| CAS No. | 491-33-8 |
| Molecular Formula | C9H7NS |
| Molecular Weight | 161.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 8-Mercaptoquinoline (C9H7NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 161.22 g/mol, it falls into the medium-molecular-weight range. 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).
8-Mercaptoquinoline (CAS 491-33-8) is a high-purity analytical reference standard with the molecular formula C9H7NS and a molecular weight of 161.22 g/mol.
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.
CATO manufactures 8-Mercaptoquinoline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7NS |
| Molecular Weight | 161.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Mercaptoquinoline Standards
- 8-Mercaptoquinoline 1-oxide (CAS 88144-87-0)
- 2-Mercaptoquinoline-4-carboxamide (CAS 929973-05-7)
- 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)
- 4-Mercaptoquinoline-3-sulfonic acid (CAS 502621-93-4)
- 4-Mercaptoquinoline-8-sulfonic acid (CAS 71330-94-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com