Description

6-Hydroxy-3-Oxo-3H-Xanthene-9-Propionic Acid is a high-purity organic intermediate belonging to the xanthene dye family. This compound is valued for its role as a key precursor in the synthesis of advanced fluorescent dyes and labeling reagents. It is essential for manufacturers and R&D teams in the pharmaceutical, diagnostic, and fine chemical industries requiring precise molecular building blocks.

Application

• Fluorescent Dye Synthesis: A critical precursor for manufacturing rhodamine and fluorescein-based dyes used in bioimaging and flow cytometry.
• Bioconjugation & Labeling Reagents: Used to create active esters and other derivatives for labeling proteins, antibodies, and nucleic acids in diagnostic assays.
• Analytical Chemistry: Serves as a starting material for developing sensitive fluorescent probes and sensors for metal ion detection and pH indicators.
• Pharmaceutical Intermediates: Employed in the research and development of novel therapeutic agents and drug delivery systems.
• Material Science: Used in the development of advanced polymeric materials and optoelectronic devices requiring specific photophysical properties.

Basic Information

Product Name	6-Hydroxy-3-Oxo-3H-Xanthene-9-Propionic Acid
CAS No.	16290-22-5
Molecular Formula	C₁₆H₁₂O₅
Molecular Weight	284.26 g/mol
Synonyms	9-(2-Carboxyethyl)-6-hydroxy-3H-xanthen-3-one; 3',6'-Dihydroxyfluoran-9-propionic Acid; 6-Hydroxy-9-(2-carboxyethyl)-3H-xanthen-3-one; Fluorescein propionic acid; 9-(2-Carboxyethyl)-6-hydroxy-3-oxo-3H-xanthene; 6-Hydroxy-3-oxo-3H-xanthene-9-propanoic acid; 6-HFPA
EINECS	Contact for details

Quality Control

Our 6-Hydroxy-3-Oxo-3H-Xanthene-9-Propionic Acid is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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). This material is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.2%
Heavy Metals	≤ 20 ppm

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