Description

Leuco Patent Blue Violet is a key leuco dye intermediate, a reduced form of the colorant Patent Blue V. This compound is crucial for its role in developing color-forming systems where it acts as a colorless precursor, generating a vibrant blue color upon oxidation. It is primarily utilized in the manufacturing of specialty papers, thermal and pressure-sensitive recording materials, and advanced diagnostic reagents. Its reliable performance makes it essential for industries requiring precise and controlled color development.

Application

• Primary color-forming agent in carbonless copy paper (NCR paper) systems.
• Key component in the dye layer of thermal paper for receipts, labels, and fax paper.
• Precursor for the synthesis of the dye Patent Blue V, used in various industrial applications.
• Used in the formulation of specialty inks for security printing and anti-counterfeiting features.
• Research and development of novel leuco dye-based sensors and diagnostic kits.
• Potential application in photochromic materials and light-sensitive coatings.

Basic Information

Product Name	Leuco Patent Blue Violet
CAS No.	133978-89-9
Molecular Formula	C27H31N2O6S2Na
Molecular Weight	566.66 g/mol
Synonyms	Leuco Patent Blue; Leuco Patent Blue V; Colorless Patent Blue V; 4-[[4-(Dimethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-one, Sulfonated Leuco Form; Sodium 4-((4-(dimethylamino)phenyl)(4-(ethylamino)-1-naphthyl)methylene)-3-oxo-1-cyclohexa-1,4-dien-1-olate, Inner Salt; Leuco Acid Blue 1; Leuco C.I. 42051
EINECS	Contact for details

Quality Control

Our Leuco Patent Blue Violet is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and performance consistency. We provide detailed Certificates of Analysis (COA) with key parameters including assay, impurity profile, and physical characteristics. Our commitment to quality assurance ensures reliable supply for your critical formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term stability, minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Off-white to light tan powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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