Description

Azofuchsin is a synthetic, water-soluble azo dye belonging to the fuchsin family, identified by the CAS registry number 3567-66-6. This compound is valued for its strong, vibrant red color and its utility as a versatile staining agent and colorant in various technical and research applications. It is primarily needed by professionals in the histology, microbiology, and industrial dye sectors for precise coloration and identification processes.

Application

• Histological Staining: Used as a biological stain for microscopic examination of tissue samples, often in combination with other dyes.
• Microbiological Applications: Employed in selective media and staining procedures for the identification and differentiation of bacterial cultures.
• Textile Dyeing: Functions as a colorant for dyeing natural and synthetic fibers, providing a range of red shades.
• Ink Manufacturing: Serves as a pigment component in the formulation of specialized inks for printing and marking.
• Laboratory Reagent: Acts as a chemical indicator or reagent in various analytical and research chemistry protocols.
• Educational Demonstrations: Utilized in academic settings for teaching principles of dye chemistry and staining techniques.

Basic Information

Product Name	Azofuchsin
CAS No.	3567-66-6
Molecular Formula	C18H15N3O9S3Na2
Molecular Weight	585.50 g/mol
Synonyms	Acid Fuchsin; Acid Magenta; Acid Rubin; Aniline Red; Azofuchsine; Fuchsin S; Magenta S; Rubin S; CI 42685; Food Red 11; Wool Red
EINECS	222-617-4

Quality Control

Our Azofuchsin is produced and tested under a rigorous quality management system to ensure batch-to-batch consistency and performance. Each lot is analyzed for key parameters including color strength, purity, and solubility to meet the demands of professional applications. A comprehensive Certificate of Analysis (COA) detailing all test results is 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). Keep away from incompatible materials and sources of heat.

Specification

Item	Specification
Appearance	Dark red to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 85% (Dye content)
Loss on Drying	≤ 10.0 %
Solubility (Water)	Freely soluble
pH (1% Solution)	2.0 - 4.0
Heavy Metals (as Pb)	≤ 20 ppm

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