5-(4-Chlorophenyl)-4H-1,2,4-triazole-3-thiol CAS 26028-65-9
| CAS No. | 26028-65-9 |
| Molecular Formula | C8H6ClN3S |
| Molecular Weight | 211.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-(4-Chlorophenyl)-4H-1,2,4-triazole-3-thiol (C8H6ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 211.67 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5-(4-Chlorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 26028-65-9), a certified reference material (molecular formula C8H6ClN3S, MW 211.67 g/mol) for analytical method development and quality control.
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-(4-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.
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.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
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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
- 5-(4-Chlorophenyl)-1,3-oxazole-2-thiol (CAS 49656-34-0)
- N-(4-chloro-1,1-dioxidotetrahydrothiophen-3-yl)acetamide (CAS 201990-56-9)
- 5-(4-Chlorophenyl)-1,2,4-thiadiazol-3-amine (CAS 89894-30-4)
- Erdosteine impurity 13 (CAS CATO-C4X-196313)
- 3-tert-Butyl-2,3,4,9-tetrahydro-1H-carbazole-6-carboxylic acid (CAS 685862-13-9)
- 2-((9-Ethyl-9H-benzo[4,5]imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetic acid (CAS 701929-58-0)
- 1-(5-(Hydroxymethyl)-6-methylpyrazin-2-yl)ethane-1,2-diol (CAS 130444-00-7)
- 3-Bromo-6-nitro-1H-indazole-4-carboxylic acid (CAS 885519-63-1)
- 2-(5-Bromobenzo[d]oxazol-7-yl)acetonitrile (CAS 1708401-11-9)
- 1,2,3,4,5-Pentaphenyl-1'-(di-tert-butylphosphino)ferrocene 1'-[Bis(1,1-dimethylethyl)phosphino]-1,2,3,4,5-pentaphenylferrocene 1'-(Di-tert-butylphosphino)-1,2,3,4,5-pentaphenylferrocene Di-tert-butyl(1',2',3',4',5'-pentaphenylferrocenyl)phosphine Q-Phos 312959-24-3 (CAS 312959-24-3)
- 4-Chloro-N-(2-(diethylamino)ethyl)benzamide (CAS 2852-23-5)
- Latamoxef Impurity 35 (CAS CATO-C4X-179835)
- 2-(3-Bromophenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 681028-88-6)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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