Description

6,13-Dihydroxy-3,3,11,11-Tetramethyl-3H,7H,11H-Dipyrano[3,2-B:3',2'-H]Xanthen-7-One is a high-purity, synthetic organic compound belonging to the xanthene dye family, serving as a crucial advanced intermediate. Its value lies in its unique fused polycyclic structure, which provides a stable chromophore core essential for developing specialized functional dyes and pigments. This product is primarily needed by manufacturers in the fine chemicals, specialty dyes, and advanced material science sectors for research and high-end production.

Application

• Key Intermediate for Xanthene Dyes: Serves as a critical building block in the synthesis of rhodamine and fluorescein-type dyes.
• Fluorescent Probe Synthesis: Used in the development of fluorescent markers and tags for biological imaging and diagnostic applications.
• Laser Dye Precursor: A foundational material for creating tunable laser dyes used in scientific and medical laser systems.
• Photostabilizer and Light-Absorbing Agent: Incorporated into advanced polymers and coatings to enhance UV stability and light management properties.
• Organic Electronics: Investigated as a potential component in the development of organic light-emitting diodes (OLEDs) and photovoltaics due to its electron-rich structure.
• Analytical Chemistry Reagent: Employed as a standard or reagent in chromatographic and spectroscopic analysis methods.

Basic Information

Item	Detail
Product Name	6,13-Dihydroxy-3,3,11,11-Tetramethyl-3H,7H,11H-Dipyrano[3,2-B:3',2'-H]Xanthen-7-One
CAS No.	77181-97-6
Molecular Formula	C25H24O6
Molecular Weight	420.45 g/mol
Synonyms	6,13-Dihydroxy-3,3,11,11-tetramethyl-3,11-dihydropyrano[3,2-b]xanthen-7-one; 3,3,11,11-Tetramethyl-3,11-dihydropyrano[3,2-b:3',2'-h]xanthene-6,13-diol-7-one; DPDX; Pyranoxanthenedione derivative; Light-sensitive xanthene intermediate; Fused pyranoxanthene dye precursor.
EINECS	Contact for details

Quality Control

Our production of 6,13-Dihydroxy-3,3,11,11-Tetramethyl-3H,7H,11H-Dipyrano[3,2-B:3',2'-H]Xanthen-7-One adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure compliance with exacting customer specifications. 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). This compound is light-sensitive (store away from light) and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
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.