2-Mercaptonicotinoyl chloride CAS 97936-36-2
| CAS No. | 97936-36-2 |
| Molecular Formula | C6H4ClNOS |
| Molecular Weight | 173.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Mercaptonicotinoyl chloride (CAS 97936-36-2), molecular formula C6H4ClNOS and molecular weight 173.62 g/mol, is a CATO reference standard with documented purity and traceability.
2-Mercaptonicotinoyl chloride (C6H4ClNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 2-Mercaptonicotinoyl chloride 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.
Physical & Chemical Properties
| Molecular Formula | C6H4ClNOS |
| Molecular Weight | 173.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 4-Chloro-2-fluoro-N,N-dimethylaniline (CAS 914635-85-1)
- 2-Methoxy-4-methylpyrimidine-5-carboxylic acid (CAS 1228113-00-5)
- 1-(5-Chloro-2-methylphenyl)propan-2-one (CAS 1536210-51-1)
- N-(2,5-dimethylphenyl)-3-nitrobenzamide (CAS 102631-05-0)
- Triptolide Impurity 1 (CAS 1254702-87-8)
- Pentoxyverine impurity 18 (CAS 1421930-96-2)
- 3-Methylpyrrolidine (CAS 34375-89-8)
- N-(5-Amino-2-fluorophenyl)hexanamide (CAS 1020053-87-5)
- Hydrocortisone 21-phosphate (CAS 3863-59-0)
- Methyl (S)-2-amino-3-(2-fluorophenyl)propanoate hydrochloride (CAS 457654-69-2)
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Why CATO?
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