Description

4-Methylbenzenesulfonic Acid 2-[(4-Hydroxyphenyl)Phenylmethylene]Hydrazide is a specialized organic compound belonging to the class of sulfonic acid hydrazides, valued for its role as a key synthetic intermediate and functional additive. This chemical matters for its ability to impart specific properties in advanced material formulations and serve as a precursor in complex organic synthesis. It is primarily needed by manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty polymer industries where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a hydrazide or sulfonate functional group.
• Agrochemical Synthesis: Serves as a building block for developing novel herbicides, fungicides, and plant growth regulators.
• Polymer Additive: Acts as a light stabilizer, antioxidant, or curing agent in specialty polymer and resin formulations to enhance material durability.
• Dye and Pigment Manufacturing: Employed as an intermediate in the production of complex organic dyes and high-performance pigments.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and material science applications.
• Crosslinking Agent: Utilized in the production of thermosetting resins and coatings to improve thermal and chemical resistance.

Basic Information

Item	Details
Product Name	4-Methylbenzenesulfonic Acid 2-[(4-Hydroxyphenyl)Phenylmethylene]Hydrazide
CAS No.	147169-63-9
Molecular Formula	C20H18N2O3S
Molecular Weight	366.43 g/mol
Synonyms	p-Toluenesulfonic acid (4-hydroxybenzophenone)hydrazone; 2-[(4-Hydroxyphenyl)phenylmethylene]hydrazide 4-methylbenzenesulfonic acid; 4-Methylbenzenesulfonic acid (4-hydroxybenzophenone)hydrazide; (4-Hydroxybenzophenone) p-toluenesulfonylhydrazone; Tosylhydrazone of 4-hydroxybenzophenone; Benzophenone p-tosylhydrazone derivative; 147169-63-9; (4-Hydroxybenzophenone) tosylhydrazone
EINECS	Contact for details

Quality Control

Our 4-Methylbenzenesulfonic Acid 2-[(4-Hydroxyphenyl)Phenylmethylene]Hydrazide is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent exposure to atmospheric moisture.

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)	Total impurities ≤ 2.0%

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