5-Chloro-2-methylthiopyridine CAS 89379-91-9
| CAS No. | 89379-91-9 |
| Molecular Formula | C6H6ClNS |
| Molecular Weight | 159.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 159.64 g/mol gives 5-Chloro-2-methylthiopyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Chloro-2-methylthiopyridine (CAS 89379-91-9), molecular formula C6H6ClNS and molecular weight 159.64 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-2-methylthiopyridine (C6H6ClNS) contains a nitrile group, sulfur-containing functionality, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Chloro-2-methylthiopyridine 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 | C6H6ClNS |
| Molecular Weight | 159.64 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- 334542-44-8 4-Chloro-2-(methylsulfanyl)pyridine DTXSID60441334 (CAS 334542-44-8)
- 1-(3-Bromobenzenesulfonyl)-3-methoxypyrrolidine (CAS 1967972-44-6)
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- 2'-Fluoro-5-nitro-[1,1'-biphenyl]-2-carboxylic acid (CAS 1214364-83-6)
- 4-(6-Aminopyridin-3-yl)benzonitrile (CAS 503536-78-5)
- 2-Amino-5-chloro-3-methylbenzyl Alcohol (CAS 775331-65-2)
- (2R)-1-[(tert-butoxy)carbonyl]-4,4-difluoro-2- 1408002-85-6 PB36439 methylpyrrolidine-2-carboxylic acid (CAS 1408002-85-6)
- 4-(3-Fluorophenyl)thiazole-2-carboxylic acid (CAS 886367-31-3)
- methyl 2-chloro-2-(3-chlorophenyl)acetate (CAS 91085-55-1)
- Peptide Impurity 05 (CAS 2322924-83-2)
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