4-(3-chlorophenyl)-4H-1,2,4-triazole-3-thiol CAS 66297-55-0
| CAS No. | 66297-55-0 |
| Molecular Formula | C8H6ClN3S |
| Molecular Weight | 211.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(3-chlorophenyl)-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.
4-(3-chlorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 66297-55-0) is a high-purity analytical reference standard with the molecular formula C8H6ClN3S and a molecular weight of 211.67 g/mol.
4-(3-chlorophenyl)-4H-1,2,4-triazole-3-thiol (C8H6ClN3S) contains a nitrogen-containing heterocyclic scaffold, 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 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 | C8H6ClN3S |
| Molecular Weight | 211.67 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.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related chlorophenyl Standards
- 4-(3-Chlorophenyl)-2,3-dihydro-1,3-thiazol-2-one (CAS 1095051-68-5)
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- 5-(3-Chlorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 117320-61-3)
- 4-(2-Chlorophenyl)-1,2,3-thiadiazol-5-amine (CAS 1538121-87-7)
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Recommended Standards
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- 4-(4-Chlorophenyl)-1,2,3-thiadiazol-5-amine (CAS 388088-77-5)
- 1-(4-Chlorobenzenesulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 477857-52-6)
- N-(5-Amino-2-methylphenyl)-2-methylbenzamide (CAS 436089-23-5)
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- 5-(Benzyloxy)pyridine-3-boronic Acid (CAS 1190423-61-0)
- 6-Amino-1,3-dimethyl-5-[2-(3-phenylpyrrolidin-1-yl)acetyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 336880-64-9)
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- 3-[Ethyl(hydroxy)phosphoryl]prop-2-enoic acid (CAS 1086274-70-5)
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