5-Chloro-3-(4-fluorophenyl)-1,2,4-thiadiazole CAS 138426-27-4
| CAS No. | 138426-27-4 |
| Molecular Formula | C8H4ClFN2S |
| Molecular Weight | 214.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4ClFN2S, 5-Chloro-3-(4-fluorophenyl)-1,2,4-thiadiazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies 5-Chloro-3-(4-fluorophenyl)-1,2,4-thiadiazole (CAS 138426-27-4), a certified reference material (molecular formula C8H4ClFN2S, MW 214.65 g/mol) for analytical method development and quality control.
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 5-Chloro-3-(4-fluorophenyl)-1,2,4-thiadiazole 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 | C8H4ClFN2S |
| Molecular Weight | 214.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-Chloro-3-(3-fluorophenyl)-1,2,4-thiadiazole (CAS 138426-26-3)
- 2-(3-Amino-4-chlorophenoxy)-N-methylacetamide (CAS 1387562-93-7)
- 5-Chloro-3-(2-fluoro-phenyl)-[1,2,4]thiadiazole (CAS 138426-25-2)
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