Description

2-(3,6-Dihydroxyxanthen-9-Yl)Benzoic Acid, Potassium Salt is a high-purity, functional organic salt belonging to the xanthene dye family. This compound is valued for its role as a key intermediate and functional component in advanced material synthesis and analytical chemistry. It is primarily sought by manufacturers and research institutions in the pharmaceutical, specialty chemical, and diagnostic reagent sectors.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Fluorescent Probe Synthesis: Serves as a crucial precursor for developing fluorescent dyes and molecular probes for bioimaging and cellular analysis.
• Analytical Reagent: Employed as a standard or reagent in high-performance liquid chromatography (HPLC) and other spectroscopic methods.
• Material Science Research: Utilized in the development of novel organic electronic materials and photoresponsive polymers.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing specialized xanthene-based colorants.

Basic Information

Product Name	2-(3,6-Dihydroxyxanthen-9-Yl)Benzoic Acid, Potassium Salt
CAS No.	71646-96-3
Molecular Formula	C20H11KO5
Molecular Weight	370.40 g/mol
Synonyms	Potassium 2-(3,6-dihydroxy-9H-xanthen-9-yl)benzoate; 9-(2-Carboxyphenyl)-3,6-dihydroxyxanthene Potassium Salt; Fluorescein Potassium Salt; D&C Yellow No. 7 Potassium Salt; Acid Yellow 73 Potassium Salt; Solvent Yellow 94 related compound; CI 45350:2 Potassium Salt
EINECS	Contact for details

Quality Control

Our 2-(3,6-Dihydroxyxanthen-9-Yl)Benzoic Acid, Potassium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting 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 hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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