Description

4-Phenylthiophenol is a versatile sulfur-containing aromatic compound, serving as a critical building block and intermediate in advanced organic synthesis. Its unique structure, featuring both a thiol and a phenyl group, makes it valuable for creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, where it is used to develop active ingredients, ligands, and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing drug candidates, particularly those requiring thioether or disulfide linkages.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides where the phenylthio moiety enhances biological activity.
• Polymer & Material Science: Acts as a monomer or chain-transfer agent in the synthesis of specialty polymers, resins, and functional materials.
• Ligand & Catalyst Preparation: Employed in the preparation of metal-chelating ligands for catalysis and coordination chemistry.
• Organic Synthesis Reagent: Utilized in various reactions, including nucleophilic substitutions and as a precursor for other sulfur-containing compounds.
• Research & Development: Serves as a standard or starting material in academic and industrial R&D labs for exploring new chemical entities.

Basic Information

Product Name	4-Phenylthiophenol
CAS No.	5633-55-6
Molecular Formula	C12H10S
Molecular Weight	186.27 g/mol
Synonyms	p-Phenylthiophenol; 4-Phenylbenzenethiol; (4-Phenylphenyl)thiol; 4-Biphenylylthiol; p-Biphenylylthiol; 1,1'-Biphenyl-4-thiol; 4-Phenylthiophenol; p-Thiobiphenyl
EINECS	227-076-4

Quality Control

Our 4-Phenylthiophenol is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	85 - 89 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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