4-(4-Chlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole CAS 338409-73-7
| CAS No. | 338409-73-7 |
| Molecular Formula | C9H7ClN2S2 |
| Molecular Weight | 242.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(4-Chlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole 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.
4-(4-Chlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole (CAS 338409-73-7), molecular formula C9H7ClN2S2 and molecular weight 242.75 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 4-(4-Chlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7ClN2S2 |
| Molecular Weight | 242.75 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Chlorophenyl Standards
- 5-[(2-Chlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole (CAS 338408-36-9)
- 1-((2-Chlorophenyl)thio)-3,3-dimethylbutan-2-one (CAS 1154957-29-5)
- 1-(4-Chlorophenyl)-2-(isobutylthio)ethan-1-one (CAS 1155554-83-8)
- 1-(4-Chlorophenyl)-2-(propylthio)propan-1-one (CAS 1157207-12-9)
- 1-(3-Chlorophenyl)-2-(propylthio)propan-1-one (CAS 1157365-40-6)
- 6-((4-Chlorophenyl)thio)hexan-2-one (CAS 1157610-80-4)
- 1-(3-Chlorophenyl)-2-(isopropylthio)propan-1-one (CAS 1178918-35-8)
- 1-(((4-Chlorophenyl)thio)methyl)cyclopentan-1-ol (CAS 1486844-33-0)
Recommended Standards
- 3-Chloro-2-(2-(diethylamino)ethoxy)aniline (CAS 946682-23-1)
- 5-(Benzylthio)-3-chloro-1,2,4-thiadiazole (CAS 36598-31-9)
- 3-(Benzylsulfanyl)-5-chloro-1,2,4-thiadiazole (CAS 82301-30-2)
- 2-Chloro-N'-{1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene}acetohydrazide (CAS 568598-72-1)
- 2-(4-Phenyl-2-(p-tolylimino)thiazol-3(2H)-yl)ethan-1-ol (CAS 905784-36-3)
- N-(2-Benzoyl-4-chlorophenyl)-2-{[(1R)-1-phenylethyl]amino}acetamide (CAS 1616506-47-8)
- (2S,4R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-(trifluoromethyl)pyrrolidine-2-carboxylic acid (CAS 2549171-72-2)
- Methyl 2-[(3,4,4-trifluorobut-3-en-1-yl)sulfanyl]benzoate (CAS 338777-12-1)
- Methyl 7-chloro-5-methoxyimidazo[1,5-a]pyridine-1-carboxylate (CAS 1427426-19-4)
- cis-1-(bromomethyl)-2-methyl-cyclopropane (CAS 51598-64-2)
- 1-(5-Mercapto-4-nitrothiophen-2-yl)ethan-1-one (CAS 151095-00-0)
- 1346808-87-4 tert-Butyl 3-ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate DTXSID70745330 (CAS 1346808-87-4)
- 5-Ethyl-6-methyl-4-pentyl-3,4-dihydropyrimidin-2(1H)-one (CAS 728004-28-2)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
Why CATO?
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