Description

o-Tolidine Sulfone is a specialized organic chemical compound with the CAS number 71226-58-9, serving as a crucial intermediate in advanced chemical synthesis. Its value lies in its role as a building block for high-performance dyes, pigments, and functional materials, where its specific molecular structure imparts desired properties. This product is essential for manufacturers and R&D laboratories in the fine chemical, specialty dye, and advanced material sectors seeking reliable, high-purity intermediates for their production processes.

Application

• Key intermediate in the synthesis of high-grade, light-fast azo dyes and pigments.
• Precursor for the production of specialized colorants for plastics, inks, and coatings.
• Building block in pharmaceutical research for developing novel active compounds.
• Used in analytical chemistry as a reagent or standard for specific detection methods.
• Intermediate for manufacturing functional polymers and advanced organic materials.
• Research chemical in academic and industrial R&D for exploring new synthetic pathways.

Basic Information

Product Name	o-Tolidine Sulfone
CAS No.	71226-58-9
Molecular Formula	C14H16N2O2S
Molecular Weight	276.35 g/mol
Synonyms	3,3'-Dimethylbenzidine Sulfone; 4,4'-Diamino-3,3'-dimethyldiphenyl Sulfone; Bis(3-methyl-4-aminophenyl) Sulfone; o-Tolidinesulfone; DADPS (3,3'-Dimethyl); 3,3'-Dimethyl-4,4'-diaminodiphenyl Sulfone; Sulfonylbis(2-methyl-4-aminobenzene)
EINECS	Contact for details

Quality Control

Our o-Tolidine Sulfone is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography and spectroscopic methods, to verify identity and meet precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with every 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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or opaque containers until use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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