Bis((3-chloro-1,2,4-thiadiazol-5-yl)thio)methane CAS 76838-02-3
| CAS No. | 76838-02-3 |
| Molecular Formula | C5H2Cl2N4S4 |
| Molecular Weight | 317.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Bis((3-chloro-1,2,4-thiadiazol-5-yl)thio)methane (CAS 76838-02-3), a certified reference material (molecular formula C5H2Cl2N4S4, MW 317.26 g/mol) for analytical method development and quality control.
Bis((3-chloro-1,2,4-thiadiazol-5-yl)thio)methane (C5H2Cl2N4S4) contains a nitrile group, sulfur-containing functionality, chlorine substitution. 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), Bis((3-chloro-1,2,4-thiadiazol-5-yl)thio)methane 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 | C5H2Cl2N4S4 |
| Molecular Weight | 317.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 4 |
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