Description

Basic Blue 66 is a synthetic cationic dye belonging to the triarylmethane class, widely recognized for its intense blue color and strong affinity for various substrates. This product is essential for industries requiring a reliable and vibrant blue hue with good fastness properties. It is primarily used in the coloration of paper, textiles, and leather, as well as in the formulation of inks and specialty coatings. The compound is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Primary dyeing and tinting agent for various types of paper and paperboard.
• Coloration of leather goods, providing a deep blue shade.
• Dye for synthetic and natural textile fibers, including polyacrylonitrile.
• Manufacturing of writing inks, stamp pad inks, and other specialty inks.
• Production of colored pencils, chalks, and other stationery items.
• Formulation of industrial and decorative coatings where a blue pigment is required.
• Laboratory reagent as a biological stain or pH indicator in certain applications.

Basic Information

Product Name	Basic Blue 66
CAS No.	94233-04-2
Molecular Formula	C33H40ClN3
Molecular Weight	514.14 g/mol
Synonyms	Basic Blue 66; C.I. 42775; Victoria Blue B; Basic Blue K; Astra Blue B; Aniline Blue; Spirit Blue; Paper Blue R; Leather Blue B; Triarylmethane Blue Dye
EINECS	Contact for details

Quality Control

Our Basic Blue 66 is manufactured under a rigorous quality management system. Each batch is tested to ensure it meets precise color strength, purity, and solubility specifications. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing key parameters such as assay, shade, and impurity profile. Our quality commitment ensures reliable performance and consistency for your production processes.

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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Solubility	Soluble in water and ethanol; slightly soluble in other organic solvents

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