5-(3-Chloro-phenyl)-4-(4-ethoxy-phenyl)-4H-[1,2,4]triazole-3-thiol CAS 519151-97-4
| CAS No. | 519151-97-4 |
| Molecular Formula | C16H14ClN3OS |
| Molecular Weight | 331.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(3-Chloro-phenyl)-4-(4-ethoxy-phenyl)-4H-[1,2,4]triazole-3-thiol (CAS 519151-97-4) is a high-purity analytical reference standard with the molecular formula C16H14ClN3OS and a molecular weight of 331.82 g/mol.
Structurally, 5-(3-Chloro-phenyl)-4-(4-ethoxy-phenyl)-4H-[1,2,4]triazole-3-thiol (C16H14ClN3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 331.82 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 5-(3-Chloro-phenyl)-4-(4-ethoxy-phenyl)-4H-[1,2,4]triazole-3-thiol 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 | C16H14ClN3OS |
| Molecular Weight | 331.82 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- 5-(1-(4-Chlorophenoxy)ethyl)-N-phenyl-1,3,4-thiadiazol-2-amine (CAS 90299-90-4)
- 5-(4-Chlorophenyl)-7-(thiophen-2-yl)-4,5,6,7-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 577761-03-6)
- 6-Chloro-3-morpholinoquinazolin-4(3H)-one (CAS 89804-98-8)
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- 3-(2-Aminoethyl)-5-(4-ethoxybenzylidene)thiazolidine-2,4-dione hydrochloride (CAS 1049738-54-6)
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