Description

4-(Dimethylamino)Benzenesulphonic Acid is a key sulfonic acid derivative characterized by its dimethylamino functional group, which imparts unique solubility and reactivity properties. This compound is valued as a versatile intermediate in the synthesis of more complex molecules, particularly dyes and pigments. It is essential for manufacturers in the fine chemical, pharmaceutical, and specialty colorant industries seeking reliable, high-purity building blocks for their processes.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and other colorants, where it contributes to chromophore development and solubility.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and other bioactive molecules requiring a sulfonated aromatic moiety.
• Photoinitiator and UV Absorber Production: Used in the manufacture of chemicals for polymer curing, coatings, and materials designed to absorb ultraviolet light.
• Chemical Research & Development: Employed as a standard or reagent in organic synthesis and methodological studies within R&D laboratories.
• Surfactant and Detergent Chemistry: Functions as an intermediate for synthesizing specialized surfactants due to its anionic sulfonic acid group.

Basic Information

Product Name	4-(Dimethylamino)Benzenesulphonic Acid
CAS No.	121-58-4
Molecular Formula	C8H11NO3S
Molecular Weight	201.24 g/mol
Synonyms	p-(Dimethylamino)benzenesulfonic acid; N,N-Dimethyl-4-aminobenzenesulfonic acid; 4-Dimethylaminobenzenesulfonic acid; Dimethylaniline-4-sulfonic acid; p-Dimethylaminobenzenesulphonic acid; Benzenesulfonic acid, 4-(dimethylamino)-; DABS; DMABSA
EINECS	204-483-1

Quality Control

Our 4-(Dimethylamino)Benzenesulphonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets exacting specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

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). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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