40771-41-3 5-Chloro-2-mercaptopyridine 5-chloropyridine-2-thiol CAS 40771-41-3
| CAS No. | 40771-41-3 |
| Molecular Formula | C5H10ClNS |
| Molecular Weight | 151.66 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.
40771-41-3 5-Chloro-2-mercaptopyridine 5-chloropyridine-2-thiol (CAS 40771-41-3) is a high-purity analytical reference standard with the molecular formula C5H10ClNS and a molecular weight of 151.66 g/mol.
The molecular framework of 40771-41-3 5-Chloro-2-mercaptopyridine 5-chloropyridine-2-thiol (C5H10ClNS) is characterized by sulfur-containing functionality, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H10ClNS |
| Molecular Weight | 151.66 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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