Description

Auramine G is a synthetic organic dye belonging to the diarylmethane class, widely recognized for its vibrant yellow color. This compound is valued for its strong tinctorial strength and its role as a key intermediate in the synthesis of more complex colorants. It serves critical functions in the textile, paper, leather, and specialty ink industries, where consistent color quality and batch-to-batch reliability are paramount for manufacturers.

Application

• Textile Dyeing: Used for coloring natural and synthetic fibers, particularly for achieving bright yellow shades.
• Paper Coloring: Employed in the production of colored paper, tissues, and specialty packaging materials.
• Leather Finishing: Applied in the dyeing process for leather goods, including footwear, apparel, and accessories.
• Ink Manufacturing: Serves as a pigment or dye component in the formulation of printing inks and toners.
• Biological Staining: Utilized in microscopy as a fluorescent stain for specific histological applications.
• Chemical Intermediate: Acts as a precursor in the synthesis of other dyes and organic compounds.

Basic Information

Product Name	Auramine G
CAS No.	2151-60-2
Molecular Formula	C17H22ClN3
Molecular Weight	303.83 g/mol
Synonyms	Basic Yellow 2; Auramine O; C.I. 41000; 4,4'-Dimethylaminobenzophenone imine hydrochloride; Tetramethyldiaminodiphenylketonimine hydrochloride; Canary Yellow; Pyoktanin Yellow; Auranin
EINECS	218-443-0

Quality Control

Our Auramine G is produced under a stringent quality management system to ensure it meets the exacting requirements of industrial applications. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and tests for insolubles and heavy metals. Certificates of Analysis (COA) detailing all specifications are provided to guarantee traceability and compliance with your quality standards.

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 ignition.

Specification

Item	Specification
Appearance	Yellow to orange-yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Ash Content	≤ 0.5%
Water Solubility	Conforms

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