Description

4-Phthalancarboxylic Acid, 5,7-Dihydroxy-6-Methyl- (5Ci) is a high-purity, functionalized phthalane derivative of significant interest in advanced organic synthesis. This compound matters as a versatile and valuable chemical building block for creating complex molecular architectures, particularly in pharmaceutical and agrochemical research. Industries requiring specialty intermediates for drug discovery, material science, and fine chemical production will find this product essential for developing next-generation active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with complex polycyclic structures.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators, leveraging its functionalized aromatic core.
• Material Science: Acts as a monomer or cross-linking agent in the production of specialty polymers, resins, and advanced organic materials.
• Dye and Pigment Synthesis: Employed as an intermediate for creating complex chromophores and high-performance colorants.
• Ligand and Catalyst Development: Useful for constructing chelating ligands in coordination chemistry and catalysis due to its hydroxyl and carboxylic acid functionalities.
• Academic and R&D Laboratories: A valuable reagent for methodological studies in organic chemistry and exploratory synthesis projects.

Basic Information

Item	Detail
Product Name	4-Phthalancarboxylic Acid, 5,7-Dihydroxy-6-Methyl- (5Ci)
CAS No.	706806-56-6
Molecular Formula	C11H10O5
Molecular Weight	222.19 g/mol
Synonyms	5,7-Dihydroxy-6-methyl-4-phthalancarboxylic acid; 6-Methyl-5,7-dihydroxy-4-phthalancarboxylic acid; 4-Phthalancarboxylic acid, 5,7-dihydroxy-6-methyl-; 5Ci compound 706806-56-6; 5,7-Dihydroxy-6-methylphthalane-4-carboxylic acid; 6-Methyl-5,7-dihydroxyphthalane-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Phthalancarboxylic Acid, 5,7-Dihydroxy-6-Methyl- (5Ci) is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting R&D and production standards. Comprehensive Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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