Description

3,3-Bis-(4-Hydroxy-Phenyl)-3H-Benzo[De]Isochromen-1-One is a specialized organic compound belonging to the class of benzisochromenones, valued for its unique molecular structure featuring two phenolic hydroxyl groups. This compound is significant as a key intermediate and functional building block in advanced organic synthesis, particularly for creating complex molecules with specific optical or electronic properties. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its structural complexity.
• Functional Dye & Pigment Synthesis: Acts as a building block for creating specialized dyes, pigments, and optical brighteners due to its conjugated system.
• Polymer Chemistry: Incorporated as a monomer or additive to impart specific properties like UV absorption or fluorescence to advanced polymers.
• Material Science Research: Utilized in the development of organic electronic materials, such as OLEDs or sensors.
• Academic & R&D Laboratories: Employed as a standard or reagent in chemical research exploring new organic reactions and methodologies.

Basic Information

Product Name	3,3-Bis-(4-Hydroxy-Phenyl)-3H-Benzo[De]Isochromen-1-One
CAS No.	5627-39-4
Molecular Formula	C26H16O4
Molecular Weight	392.40 g/mol
Synonyms	3,3-Bis(4-hydroxyphenyl)-3H-benzo[de]isochromen-1-one; 3,3-Bis(4-hydroxyphenyl)-1H-naphtho[2,1-c]pyran-1-one; 1H-Naphtho[2,1-c]pyran-1-one, 3,3-bis(4-hydroxyphenyl)-; Fluoran 27; 3,3-Bis(p-hydroxyphenyl)phthalide; Thermochromic dye intermediate; 3,3-Bis(4'-hydroxyphenyl)phthalide; 5627-39-4
EINECS	Contact for details

Quality Control

Our 3,3-Bis-(4-Hydroxy-Phenyl)-3H-Benzo[De]Isochromen-1-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and industrial applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature and propensity to be easily oxidized, it is recommended to store the material under an inert atmosphere for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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