Description

4-Hydroxy-2-Methylbenzoic Acid 98 CAS NO 578-39-2 is a versatile aromatic carboxylic acid derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in providing a reactive phenolic and carboxylic acid functionality on a methyl-substituted benzene ring, enabling the construction of complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, where its structure contributes to biological activity.
• Dye and Pigment Manufacturing: Acts as a precursor for azo dyes and other complex colorants, contributing to chromophore development.
• Polymer and Resin Modifier: Incorporated into polymer chains to introduce carboxylic acid groups, enhancing properties like adhesion, cross-linking potential, and solubility.
• Chemical Research & Development: Serves as a standard reagent and starting material in organic synthesis for novel compound libraries and material science applications.
• UV Absorber and Stabilizer Precursor: Used in the synthesis of compounds that protect materials from photodegradation.

Basic Information

Product Name	4-Hydroxy-2-Methylbenzoic Acid
CAS No.	578-39-2
Molecular Formula	C8H8O3
Molecular Weight	152.15 g/mol
Synonyms	2-Methyl-4-hydroxybenzoic acid; 4-Hydroxy-o-toluic acid; 2-Methylsalicylic acid; 4-Hydroxy-2-methylbenzoic acid; 2-Methyl-4-hydroxybenzoic acid; o-Cresotic acid; 2-Methyl-4-carboxyphenol; 578-39-2
EINECS	209-424-5

Quality Control

Our 4-Hydroxy-2-Methylbenzoic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the declared 98% minimum purity and consistent physical properties. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request for full traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as 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%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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