Description

2-Benzenedicarboxylic Acid, 3-Hydroxy-5-Methyl-1 is a specialized aromatic dicarboxylic acid derivative with a hydroxyl substituent, offering unique reactivity and functional properties for advanced synthesis. This compound is valued for its role as a key building block in the production of high-performance polymers, liquid crystals, and complex organic intermediates. It is essential for R&D and manufacturing in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel materials with tailored characteristics.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Polymer & Resin Production: Used as a monomer or co-monomer for creating specialty polyesters, polyamides, and high-temperature resistant polymers.
• Liquid Crystal Synthesis: Acts as a core component in the manufacture of advanced liquid crystal materials for display technologies.
• Agrochemical Development: Employed in research and production of advanced herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Manufacturing: Functions as an intermediate for producing complex organic dyes and high-performance pigments.
• Coordination Chemistry & Ligand: Utilized in the synthesis of metal-organic frameworks (MOFs) and as a chelating ligand in catalytic systems.
• Academic & Industrial R&D: A valuable reagent for chemical research, process development, and exploring new synthetic pathways.

Basic Information

Product Name	2-Benzenedicarboxylic Acid, 3-Hydroxy-5-Methyl-1
CAS No.	4821-91-4
Molecular Formula	C9H8O5
Molecular Weight	196.16 g/mol
Synonyms	3-Hydroxy-5-methylphthalic Acid; 5-Methyl-3-hydroxyphthalic Acid; 3-Hydroxy-5-methylbenzene-1,2-dicarboxylic Acid; 1,2-Benzenedicarboxylic acid, 3-hydroxy-5-methyl-; 3-Hydroxy-5-methyl-1,2-benzenedicarboxylic Acid
EINECS	Contact for details

Quality Control

Our 2-Benzenedicarboxylic Acid, 3-Hydroxy-5-Methyl-1 is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory 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 absorption of atmospheric moisture, which can affect product stability and performance.

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)	≤ 10 ppm

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