Description

p-Tolyl Disulfide is a high-purity organic sulfur compound, also known as bis(4-methylphenyl) disulfide, serving as a versatile intermediate and specialty chemical. It is valued for its role as a sulfur donor, chain transfer agent, and building block in advanced synthesis. This product is essential for manufacturers and R&D facilities in the pharmaceutical, polymer, rubber, and agrochemical industries seeking reliable, high-quality raw materials.

Application

• Polymer & Rubber Industry: Acts as a vulcanization accelerator, sulfur donor, and chain transfer agent in the production of synthetic rubbers and specialty polymers.
• Pharmaceutical Synthesis: Serves as a key intermediate and protecting group reagent in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Manufacturing: Used as a precursor and intermediate in the synthesis of certain pesticides, herbicides, and fungicides.
• Lubricant & Fuel Additives: Functions as an antioxidant and extreme pressure (EP) additive component in industrial lubricants and specialty fuels.
• Chemical Research & Development: Employed as a standard reagent and building block in organic synthesis and material science research.
• Crosslinking Agent: Utilized in the curing and crosslinking processes for specific resins and high-performance elastomers.

Basic Information

Item	Detail
Product Name	p-Tolyl Disulfide
CAS No.	103-19-5
Molecular Formula	C14H14S2
Molecular Weight	246.39 g/mol
Synonyms	Bis(4-methylphenyl) disulfide; Di-p-tolyl disulfide; 4,4'-Dimethyldiphenyl disulfide; 1-Methyl-4-[(4-methylphenyl)disulfanyl]benzene; p-Tolyl disulphide; DTDP; NSC 403697
EINECS	203-083-5

Quality Control

Our p-Tolyl Disulfide is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	44 - 48 °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.