Description

o-Tolidine Sulfone is a specialized organic chemical compound primarily utilized as a key intermediate in the synthesis of dyes, pigments, and advanced materials. Its significance lies in its role as a versatile building block, enabling the production of high-performance colorants and functional polymers. This product is essential for manufacturers and R&D laboratories in the chemical, textile, and specialty materials industries seeking reliable, high-purity intermediates for their synthesis processes.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, solvent dyes, and high-grade organic pigments.
• Polymer Chemistry: Used as a monomer or cross-linking agent in the production of specialty polymers and resins.
• Analytical Reagent: Employed in specific chemical analyses and as a reagent in organic synthesis research.
• Pharmaceutical Intermediate: Serves as a building block in the research and development of certain active pharmaceutical ingredients (APIs).
• Liquid Crystal and OLED Materials: A potential intermediate in the manufacture of advanced electronic display materials.
• Photographic Chemicals: Used in the formulation of certain light-sensitive compounds for photographic applications.

Basic Information

Product Name	o-Tolidine Sulfone
CAS No.	55011-44-4
Molecular Formula	C14H16N2O2S
Molecular Weight	276.35 g/mol
Synonyms	3,3'-Dimethyl-4,4'-diaminodiphenyl sulfone; 4,4'-Diamino-3,3'-dimethyldiphenyl sulfone; Dapsone dimethyl derivative; o-Tolidinesulfone; Bis(3-methyl-4-aminophenyl) sulfone; 3,3'-Ditolylsulfone-4,4'-diamine; 4,4'-Diamino-3,3'-dimethyl diphenyl sulphone
EINECS	Contact for details

Quality Control

Our o-Tolidine Sulfone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC, IR, and melting point determination, to meet exacting customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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