4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazole-3-thiol CAS 438231-11-9
| CAS No. | 438231-11-9 |
| Molecular Formula | C9H10N4S |
| Molecular Weight | 206.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazole-3-thiol.
CATO supplies 4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazole-3-thiol (CAS 438231-11-9), 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-2-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.
CATO manufactures 4-Ethyl-5-(pyridin-2-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.
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.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 26131-68-0)
- 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-Ethyl-5-(4-pyridinyl)-4H-1,2,4-triazole-3-thiol (CAS 26029-01-6)
- 4-Amino-5-(2-methylphenyl)-4h-1,2,4-triazole-3-thiol (CAS 87239-95-0)
- 4-Hydrazinyl-2-(methylthio)quinazoline (CAS 866137-95-3)
- 4-[4-Methyl-5-(methylthio)-4H-1,2,4-triazol-3-yl]-pyridine (CAS 57295-67-7)
- 4-(Bromodifluoromethoxy)-2-chloro-3-methoxypyridine (CAS 2869955-52-0)
- 1-(4-Methoxyphenyl)-1,2-ethanediol (CAS 13603-63-9)
- 2-((5-Bromo-3-methylpyridin-2-yl)amino)ethan-1-ol (CAS 1219982-77-0)
- Sofosbuvir Impurity 77 (CAS CATO-C4X-105277)
- Aripiprazole Impurity 15 (CAS CATO-C4X-100815)
- 4-Amino-3-chloro-1H-indazole-6-carboxylic acid (CAS 885521-23-3)
- (S)-2-Amino-2-(6-bromopyridin-3-yl)ethanol (CAS 1213204-08-0)
- Eucatropine Impurity 1 (CAS CATO-C4X-32211)
- 3,4-Dibromo-2,6-dimethylphenol (CAS 1125-51-5)
- Semaglutide impurity 50 (CAS 2773558-66-8)
Why CATO?
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