Description

5-Mercapto-4H-[1,2,4]Triazol-3-Ol is a versatile heterocyclic compound featuring both mercapto and hydroxyl functional groups on a triazole core. This unique structure makes it a valuable building block and intermediate in advanced organic synthesis, particularly for creating complex molecules with specific biological or material properties. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with triazole-based structures for antiviral, antifungal, or anticancer applications.
• Agrochemical Synthesis: Used in the production of modern pesticides, herbicides, and fungicides, where the triazole moiety contributes to biological activity and stability.
• Coordination Chemistry & Material Science: Serves as a ligand for metal complexes due to its sulfur and nitrogen donor atoms, applicable in catalysis and the development of novel materials.
• Chemical Research & Development: A fundamental building block for constructing diverse heterocyclic libraries in medicinal chemistry and drug discovery programs.
• Corrosion Inhibitor Formulation: Potential use in developing high-performance corrosion inhibitors for industrial applications, leveraging its ability to adsorb onto metal surfaces.

Basic Information

Product Name	5-Mercapto-4H-[1,2,4]Triazol-3-Ol
CAS No.	503-89-9
Molecular Formula	C2H3N3OS
Molecular Weight	117.13 g/mol
Synonyms	3-Hydroxy-1,2,4-triazole-5-thiol; 1H-1,2,4-Triazole-3-thiol, 5-hydroxy-; 5-Hydroxy-1,2,4-triazole-3-thione; 3-Mercapto-1,2,4-triazol-5-ol; 5-Mercapto-1H-1,2,4-triazol-3-ol; Oxotriazolidinethione; 1,2,4-Triazole-3-thiol, 5-hydroxy-; 5-Mercapto-3-hydroxy-1,2,4-triazole
EINECS	207-966-5

Quality Control

Our 5-Mercapto-4H-[1,2,4]Triazol-3-Ol is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality parameters. We can support development and production needs across various purity grades, from technical to high-purity research standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation and to minimize degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.