Description

Tannins, Salts With n-[4-[Bis[4-(Dimethylamino) Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium is a specialized cationic dye complex, specifically a salt of Victoria Blue B with tannic acid, known for its intense color and affinity for various substrates. This compound matters for its critical role as a staining agent and colorimetric indicator in biological and industrial applications, offering high sensitivity and stability. It is primarily needed by manufacturers and laboratories in the histology, microscopy, textile dyeing, and ink formulation sectors.

Application

• Biological Staining: Used as a vital stain in histology and cytology for microscopic examination of tissues and cells.
• Textile Industry: Acts as a cationic dye for coloring natural fibers like wool, silk, and certain synthetic materials.
• Ink Manufacturing: Serves as a key pigment component in the production of writing inks, stamp pad inks, and specialty printing inks.
• Paper Coloring: Employed in the dyeing of paper products where a deep, vibrant blue shade is required.
• Analytical Chemistry: Functions as a colorimetric indicator or reagent in specific chemical assays and detection methods.
• Leather Finishing: Utilized in the final coloring stages of leather goods.
• Research & Development: Applied in academic and industrial R&D for material science studies and prototype development.

Basic Information

Item	Details
Product Name	Tannins, Salts With n-[4-[Bis[4-(Dimethylamino) Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium
CAS No.	68477-21-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Victoria Blue B Tannate; C.I. 44045; Basic Blue 26 Tannate; Tannin Salt of Victoria Blue B; Victoria Blue B Lake; [4-[Bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium salt with tannins; Tannin Lake of Victoria Blue; C.I. Basic Blue 26 Tannate
EINECS	Contact for details

Quality Control

Our production of Tannins, Salts With n-[4-[Bis[4-(Dimethylamino) Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. All materials undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and physical parameters are available upon request to support your quality assurance and regulatory needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder
Identification (IR)	Conforms to standard
Assay (Dye Content)	Min. 90%
Loss on Drying	Max. 5.0%
Solubility	Soluble in ethanol; slightly soluble in water
Heavy Metals (as Pb)	Max. 20 ppm
Residue on Ignition	Max. 1.0%

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