Description

α-(n-Ethyl-m-Toluidino)-m-Toluenesulphonic Acid is a specialized organic sulfonic acid derivative, primarily valued as a key intermediate in the synthesis of high-performance dyes and pigments. Its chemical structure makes it an essential building block for creating colorants with excellent lightfastness and thermal stability. This compound is critical for manufacturers in the dye and pigment industry, as well as for research institutions developing novel functional materials.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and other complex organic pigments.
• Chemical Synthesis: Used as a sulfonation agent or acidic catalyst in specific organic synthesis reactions.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for developing new chromophores and functional molecules.
• Specialty Chemicals: Potential applications in the formulation of photoactive materials and other advanced chemical products.

Basic Information

Product Name	α-(n-Ethyl-m-Toluidino)-m-Toluenesulphonic Acid
CAS No.	91-98-5
Molecular Formula	C16H19NO3S
Molecular Weight	305.39 g/mol
Synonyms	N-Ethyl-N-(3-methylphenyl)-3-sulfobenzamide; 2-[(Ethyl-m-toluidino)methyl]benzenesulfonic acid; m-Toluenesulfonic acid, α-[(ethyl-m-toluidino)]-; ETMSA; Benzenesulfonic acid, 2-[(ethyl-m-toluidino)methyl]-; α-(N-Ethyl-m-toluidino)-m-toluenesulfonic acid
EINECS	202-111-4

Quality Control

Our production of α-(n-Ethyl-m-Toluidino)-m-Toluenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 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.