Description

5-[(3-Carboxy-2-Hydroxy-5-Methylphenyl)(3-Carboxy-5-Methyl-4-Oxo-2,5-Cyclohexadien-1-Ylidene)Methyl]-2-Hydroxy-3-Methylbenzoic Acid is a complex, multi-functional carboxylic acid derivative with a distinctive quinone methide-like structure. This compound serves as a highly versatile chemical intermediate and a critical building block in advanced organic synthesis. It is primarily sought after by research and development teams in the pharmaceutical and specialty chemical sectors. Its unique molecular framework enables the synthesis of novel compounds with potential applications in material science and life sciences.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, particularly those targeting specific biological pathways.
• Organic Synthesis Building Block: Used in the construction of complex polycyclic structures, dyes, and functional materials due to its reactive carbonyl and phenolic groups.
• Research & Development (R&D): Employed in academic and industrial laboratories for developing new chemical entities and studying structure-activity relationships.
• Specialty Chemical Production: Acts as an intermediate for manufacturing advanced performance chemicals, including ligands for catalysis and photoactive compounds.
• Analytical Reference Standard: Serves as a high-purity standard for analytical method development and quality control in chemical manufacturing.

Basic Information

Product Name	5-[(3-Carboxy-2-Hydroxy-5-Methylphenyl)(3-Carboxy-5-Methyl-4-Oxo-2,5-Cyclohexadien-1-Ylidene)Methyl]-2-Hydroxy-3-Methylbenzoic Acid
CAS No.	3267-41-2
Molecular Formula	C25H20O8
Molecular Weight	448.42 g/mol
Synonyms	3,3'-[(2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene)]bis(6-methyl-4-oxocyclohexa-2,5-diene-1-carboxylic acid); 2,2',4-Trihydroxy-3,3',5,5'-tetramethyltriphenylmethane-α,α'-dicarboxylic acid-4'-quinone; Rosolic acid derivative; Aurin tricarboxylic acid derivative; 4-[Bis(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-2-hydroxy-5-methylbenzoic acid; 5-[Bis(6-carboxy-3-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-2-hydroxy-3-methylbenzoic acid
EINECS	Contact for details

Quality Control

Our 5-[(3-Carboxy-2-Hydroxy-5-Methylphenyl)(3-Carboxy-5-Methyl-4-Oxo-2,5-Cyclohexadien-1-Ylidene)Methyl]-2-Hydroxy-3-Methylbenzoic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting research and industrial-grade specifications. Comprehensive Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics are provided with each shipment to guarantee traceability and consistency.

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 tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
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.