4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-thiol CAS 26131-68-0
| CAS No. | 26131-68-0 |
| Molecular Formula | C9H10N4S |
| Molecular Weight | 206.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-thiol 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.
CATO supplies 4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 26131-68-0), a certified reference material (molecular formula C9H10N4S, MW 206.27 g/mol) for analytical method development and quality control.
The molecular framework of 4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-thiol (C9H10N4S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C9H10N4S |
| Molecular Weight | 206.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazole-3-thiol (CAS 438231-11-9)
- 1-(Pyridin-2-yl)-N-((tetrahydrofuran-2-yl)methyl)ethan-1-amine (CAS 1020969-13-4)
- 1-(Pyridin-4-yl)-N-((tetrahydrofuran-2-yl)methyl)ethan-1-amine (CAS 1021034-89-8)
- 1-(Pyridin-3-yl)-N-((tetrahydrofuran-2-yl)methyl)ethan-1-amine (CAS 1021069-91-9)
- n-(2-(Pyridin-2-yl)ethyl)tetrahydro-2h-pyran-4-amine (CAS 1157008-04-2)
- N-(1-(pyridin-2-yl)ethyl)tetrahydro-2H-pyran-4-amine (CAS 1157011-33-0)
- n-(1-(Pyridin-3-yl)ethyl)tetrahydro-2h-pyran-4-amine (CAS 1157012-55-9)
- 2-((Pyridin-2-ylmethyl)amino)cyclohexan-1-ol (CAS 1182778-42-2)
Recommended Standards
- 4-Hydrazinyl-2-(methylthio)quinazoline (CAS 866137-95-3)
- 4-Ethyl-5-(4-pyridinyl)-4H-1,2,4-triazole-3-thiol (CAS 26029-01-6)
- 4-Hydrazinyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 303798-10-9)
- 4-Amino-5-(2-methylphenyl)-4h-1,2,4-triazole-3-thiol (CAS 87239-95-0)
- 4-Methoxyphenylglyoxal hydrate (CAS 1081566-54-2)
- 3-Chloro-4-(trifluoromethoxy)benzyl Alcohol (CAS 56456-48-5)
- 1,5-Dichloro-2-methoxy-3-nitrobenzene (CAS 37138-82-2)
- (S)-1-(2-(Dimethylamino)-4-fluorophenyl)ethan-1-ol (CAS 1421607-36-4)
- (1S,2S,4R)-Bicyclo[2.2.1]heptane-2-carboxylic acid (CAS 79026-23-6)
- 84955-29-3 N'-[(3beta,8xi,9xi,14xi,17E)-3-Hydroxyandrostan-17-ylidene]-4-methylbenzene-1-sulfonohydrazide DTXSID80717927 (CAS 84955-29-3)
- 3-Phenoxypyrrolidine (CAS 21767-14-6)
- 5-(tert-Butyl)-4-cyclopropoxy-2-(methylthio)pyridine (CAS 1243461-63-3)
- N-(3-Fluorophenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-amine (CAS 70059-64-2)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com