Description

3 - Methoxy - Toluene - 4 - Sulfonic Acid CAS NO 59554-29-9 is a versatile aromatic sulfonic acid derivative, serving as a key synthetic intermediate and functional additive in advanced chemical manufacturing. Its value lies in its dual functionality, combining the reactivity of a sulfonic acid group with the directing and solubilizing properties of a methoxy substituent on the toluene backbone. This compound is essential for producers in the pharmaceutical, agrochemical, and specialty chemical sectors who require high-purity building blocks for complex synthesis.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring sulfonate or sulfonamide functionalities.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its aromatic structure acts as a core scaffold.
• Dye and Pigment Manufacturing: Functions as a coupling agent or a sulfonating component in the synthesis of azo dyes and other colorants.
• Polymer and Resin Modification: Acts as a monomer or additive to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Catalyst and Ligand Preparation: Serves as a precursor for creating metal-chelating ligands or solid acid catalysts used in organic transformations.
• Surfactant and Detergent Industry: Can be utilized as a starting material for the production of anionic surfactants with specific branching.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	3 - Methoxy - Toluene - 4 - Sulfonic Acid
CAS No.	59554-29-9
Molecular Formula	C8H10O4S
Molecular Weight	202.23 g/mol
Synonyms	4-Methyl-3-methoxybenzenesulfonic Acid; 3-Methoxy-p-toluenesulfonic Acid; 3-Methoxy-4-methylbenzenesulfonic Acid; 4-Methyl-3-methoxybenzene-1-sulfonic Acid; 3-Methoxy-4-toluenesulfonic Acid; p-Toluenesulfonic Acid, 3-methoxy-; 59554-29-9; 3-Methoxy-4-methylphenylsulfonic Acid
EINECS	Contact for details

Quality Control

Our 3 - Methoxy - Toluene - 4 - Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing results from advanced techniques like HPLC, NMR, and titration. Our commitment to consistent quality and traceability supports your regulatory and production needs.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
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.