Description

4-Methyl-3,5-Dinitro-Benzenesulfonic Acid is a specialized aromatic sulfonic acid derivative, valued for its strong acidity and functional nitro groups which make it a versatile intermediate in advanced organic synthesis. This compound is critical for introducing specific sulfonate and nitro functionalities into target molecules, enabling the development of complex chemical architectures. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and dye industries for the synthesis of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring sulfonate ester or nitroaromatic motifs.
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators where its structural elements contribute to biological activity.
• Dye and Pigment Manufacturing: Serves as a precursor for azo dyes and other complex colorants, leveraging the nitro groups for chromophore development.
• Polymer Chemistry: Acts as a monomer or functionalization agent for creating ion-exchange resins or sulfonated polymers with specific properties.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new synthetic pathways and creating novel specialty chemicals.
• Corrosion Inhibitor Formulation: Its acidic and aromatic structure can be utilized in developing formulations for metal surface treatment and protection.

Basic Information

Product Name	4-Methyl-3,5-Dinitro-Benzenesulfonic Acid
CAS No.	5465-61-2
Molecular Formula	C7H6N2O8S
Molecular Weight	278.20 g/mol
Synonyms	3,5-Dinitro-4-methylbenzenesulfonic Acid; 4-Methyl-3,5-dinitrobenzenesulphonic Acid; Benzenesulfonic acid, 4-methyl-3,5-dinitro-; 2,6-Dinitro-p-toluenesulfonic Acid; DNTSA; 5465-61-2; 4-Methyl-3,5-dinitrobenzene-1-sulfonic acid
EINECS	226-764-8

Quality Control

Our production of 4-Methyl-3,5-Dinitro-Benzenesulfonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, titration for assay, and FT-IR for identification, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Recommended storage temperature is 15-25°C. Due to its nature as a strong acid/organic solvent, ensure containers are kept upright and clearly labeled in a dedicated acid storage cabinet.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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