Description

(Methylphenoxy)Toluenesulphonic Acid is a specialized organic sulfonic acid derivative, recognized for its utility as a versatile chemical intermediate and catalyst. Its value lies in its strong acidic properties and unique aromatic structure, which facilitate critical reactions in advanced synthesis. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and fine chemical industries seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a sulfonic acid or protected phenolic moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its structural features contribute to biological activity.
• Catalyst in Organic Reactions: Serves as an efficient acid catalyst in esterification, alkylation, and condensation reactions, offering advantages in selectivity and ease of work-up.
• Polymer Chemistry: Employed as a monomer or modifying agent in the production of specialty polymers, including ion-exchange resins and high-performance materials.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of complex organic dyes and pigments, contributing to color fastness and stability.
• Research & Development: A valuable reagent for academic and industrial R&D in exploring new synthetic pathways and novel compound libraries.

Basic Information

Product Name	(Methylphenoxy)Toluenesulphonic Acid
CAS No.	50852-54-5
Molecular Formula	C14H14O4S
Molecular Weight	278.32 g/mol
Synonyms	4-(4-Methylphenoxy)benzenesulfonic Acid; p-(p-Methylphenoxy)benzenesulfonic Acid; Toluenesulfonic Acid, (4-methylphenoxy)-; (4-Methylphenoxy)benzenesulfonic Acid; 4-(p-Tolyloxy)benzenesulfonic Acid; (p-Methylphenoxy)benzenesulfonic Acid; Benzenesulfonic acid, 4-(4-methylphenoxy)-
EINECS	Contact for details

Quality Control

Our (Methylphenoxy)Toluenesulphonic Acid is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, NMR, and titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each 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 a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and incompatible materials.

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
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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