Description

Purpurin is a naturally occurring anthraquinone dye and a key intermediate in organic synthesis. Its distinct color and chemical structure make it valuable for research and industrial applications requiring precise chromophores. This compound is primarily utilized by manufacturers and research institutions in the dye, analytical chemistry, and life science sectors. We supply high-purity Purpurin to support consistent quality and reliable performance in your processes.

Application

• Histological Staining: Used as a biological stain for calcium deposits in bone and tissue samples.
• Dye Intermediate: Serves as a precursor for the synthesis of various anthraquinone dyes and pigments.
• Analytical Reagent: Employed in chemical analysis and as a colorimetric indicator in specific assays.
• Research Chemical: Utilized in biochemical and pharmaceutical research for studying biological processes.
• Metal Complexation: Acts as a chelating agent for certain metal ions in laboratory studies.

Basic Information

Product Name	Purpurin
CAS No.	81-54-9
Molecular Formula	C14H8O5
Molecular Weight	256.21 g/mol
Synonyms	1,2,4-Trihydroxyanthraquinone; Purpurine; Verantin; Alizarin Purpurin; Alizarin No. 18; C.I. 58205; C.I. Natural Red 16; NSC 407337
EINECS	201-355-5

Quality Control

Our Purpurin is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange-red to brownish-red powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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