Description

2,5-Dihydroxythiophenol is a versatile aromatic thiol compound featuring two hydroxyl groups in the ortho and para positions relative to the thiol group. This unique bifunctional structure makes it a valuable building block and ligand precursor in advanced chemical synthesis. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and material science sectors for creating complex molecules and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring thioether or metal-chelating motifs.
• Ligand Synthesis: Serves as a starting material for creating chelating ligands used in catalysis, metal extraction, and diagnostic imaging agents.
• Polymer Modification: Used to introduce thiol and phenolic functional groups into polymers to alter properties like adhesion, cross-linking density, and metal-binding capacity.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides and fungicides where the thiophenol core is integral to biological activity.
• Research & Development: Employed in organic synthesis research for constructing heterocyclic compounds and complex molecular architectures.
• Surface Functionalization: Can be used to modify gold or other metal surfaces via the thiol group for sensor or nanotechnology applications.

Basic Information

Product Name	2,5-Dihydroxythiophenol
CAS No.	2889-61-4
Molecular Formula	C6H6O2S
Molecular Weight	142.18 g/mol
Synonyms	2,5-Dihydroxybenzenethiol; 1,4-Dihydroxy-2-mercaptobenzene; 2-Mercaptohydroquinone; 2,5-Dihydroxyphenyl mercaptan; Thiohydroquinone; 2,5-Dihydroxy thiophenol; 2,5-Dihydroxybenzene-1-thiol
EINECS	220-767-7

Quality Control

Our 2,5-Dihydroxythiophenol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your quality requirements.

Storage

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

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	118 - 122 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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