Description

3-Hydroxynaphtho[3,2,1-Kl]Xanthene-7,9-Dione is a specialized organic compound belonging to the xanthene dye family, known for its distinct fused polycyclic aromatic structure. This compound is valued for its role as a key intermediate and functional chromophore in the synthesis of advanced colorants and functional materials. It is primarily sought by manufacturers and R&D laboratories in the dyes and pigments, optical materials, and analytical chemistry sectors for developing products with specific light-absorption and emission properties.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing high-performance xanthene-based dyes, fluorescent pigments, and laser dyes.
• Functional Material Synthesis: Used in the research and production of organic semiconductors, photoconductive materials, and non-linear optical (NLO) materials.
• Analytical Reagents & Sensors: Serves as a precursor for developing fluorescent probes, pH indicators, and chemosensors for biological and environmental detection.
• Photographic and Imaging Applications: Employed in the formulation of sensitizers and color couplers for specialized photographic films and imaging systems.
• Research & Development: A valuable reference standard and starting material in organic synthesis and photophysical studies within academic and industrial R&D settings.

Basic Information

Product Name	3-Hydroxynaphtho[3,2,1-Kl]Xanthene-7,9-Dione
CAS No.	6837-65-6
Molecular Formula	C21H10O4
Molecular Weight	326.30 g/mol
Synonyms	3-Hydroxybenzo[kl]xanthene-1,9-dione; 3-Hydroxynaphtho[3,2,1-kl]xanthene-7,9-dione; Naphtho[3,2,1-kl]xanthene-7,9-dione, 3-hydroxy-; 3-Hydroxy-7H-naphtho[3,2,1-kl]xanthen-7-one; 3-Hydroxy-7H-benzo[kl]xanthen-7-one; A potential precursor for Rhodamine-type dyes.
EINECS	Contact for details

Quality Control

Our 3-Hydroxynaphtho[3,2,1-Kl]Xanthene-7,9-Dione is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay (HPLC), related substances, and physical characteristics. Specifications can be aligned with customer requirements for research or industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange-red powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Related Substances (HPLC)	Total impurities ≤ 5.0%
Melting Point	Contact for details

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