Description

4-(Bis(4-Hydroxyphenyl)Methylene)-2-Methyl-2,5-Cyclohexadien-1-One is a specialized organic compound belonging to the class of triarylmethane derivatives, valued for its unique structural properties. This chemical serves as a critical intermediate in the synthesis of advanced materials and functional dyes, where its conjugated system and phenolic groups are essential. It is primarily utilized by research institutions and industrial manufacturers in the fine chemical, pharmaceutical, and advanced polymer sectors.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and diagnostic agents.
• Functional Dye Precursor: Serves as a core intermediate for manufacturing triarylmethane dyes, pH indicators, and photochromic materials.
• Advanced Material Synthesis: Used in the development of organic semiconductors, non-linear optical (NLO) materials, and molecular sensors.
• Research & Development: Essential compound for academic and industrial R&D in organic chemistry and material science.
• Polymer Additive: Acts as a monomer or cross-linking agent in the production of specialty polymers with enhanced thermal or optical properties.
• Analytical Chemistry: Employed as a reagent or standard in chromatographic analysis and spectroscopic studies.

Basic Information

Item	Details
Product Name	4-(Bis(4-Hydroxyphenyl)Methylene)-2-Methyl-2,5-Cyclohexadien-1-One
CAS No.	633-00-1
Molecular Formula	C21H16O3
Molecular Weight	316.35 g/mol
Synonyms	Aurin; Rosolic Acid; Corallin; 4-[Bis(4-hydroxyphenyl)methylene]-2-methylcyclohexa-2,5-dien-1-one; p-Rosolic Acid; Yellow Corallin; Pararosolic Acid; Goldin; C.I. 43800
EINECS	211-189-6

Quality Control

Our production of 4-(Bis(4-Hydroxyphenyl)Methylene)-2-Methyl-2,5-Cyclohexadien-1-One adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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 sensitivity to oxidation, prolonged exposure to air should be minimized. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown to dark red powder or crystals
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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