Description

Ci Basic Blue 141 is a synthetic cationic dye belonging to the triarylmethane class, widely recognized for its intense blue color and strong affinity for various substrates. This high-purity dye is essential for achieving consistent, vibrant coloration with excellent fastness properties in demanding industrial applications. It is a critical component for manufacturers in the textile, paper, leather, and specialty ink industries seeking reliable and high-performance colorants.

Application

• Textile Dyeing and Printing: Primarily used for dyeing acrylic, modacrylic, and cationic-dyeable polyester fibers, offering excellent color yield and wash fastness.
• Paper Coloring: Employed in the production of colored papers, tissues, and specialty paper products where bright, uniform shades are required.
• Leather Finishing: Used for dyeing leather goods, providing rich, penetrating color for products like upholstery, footwear, and accessories.
• Ink Manufacturing: A key pigment for formulating specialty inks, including security inks and inks for non-porous surfaces.
• Biological Staining: Finds application as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Used for mass coloration of certain plastics and synthetic materials.

Basic Information

Product Name	Ci Basic Blue 141
CAS No.	63641-90-7
Molecular Formula	C20H26N3O3S+ • Cl-
Molecular Weight	415.95 g/mol (for cation)
Synonyms	Basic Blue 141; C.I. 42595; Victoria Pure Blue BO; Astra Blue BG; Maxilon Blue BG; Aizen Cathilon Blue GLH; Sevron Blue B; Cationic Blue GL; Triarylmethane Blue Dye; [4-[[4-(Dimethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium chloride
EINECS	Contact for details

Quality Control

Our Ci Basic Blue 141 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Every lot is tested against stringent in-house specifications, which typically include parameters for color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee compliance with your technical requirements.

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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Shade	Within agreed tolerance
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Solubility (in water)	Clear, complete solution

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