Description

Disodium 4-[Bis[4-(Dimethylamino)Phenyl]Methyl]-3-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, water-soluble dye intermediate and functional organic chemical. This compound matters for its role as a key precursor in the synthesis of specialized dyes, pigments, and colorants, offering excellent chromophoric properties and stability. It is primarily needed by manufacturers in the dye and pigment industry, as well as by research and development laboratories working on advanced materials, optical sensors, and specialty chemical formulations.

Application

• Dye and Pigment Synthesis: A critical intermediate for producing triarylmethane dyes, cationic dyes, and other complex colorants.
• Textile Industry: Used in the manufacturing of dyes for coloring natural and synthetic fibers.
• Paper Coloring: Employed in the production of dyes for high-quality paper and specialty packaging.
• Biological Staining: Serves as a precursor for histological stains and biological markers used in microscopy.
• Laser Dyes and Optical Applications: Potential use in the development of tunable laser dyes and photonic materials.
• Chemical Research: A valuable building block in organic synthesis and materials science research.
• Ink Formulation: Used in the development of specialty inks for printing and imaging technologies.

Basic Information

Product Name	Disodium 4-[Bis[4-(Dimethylamino)Phenyl]Methyl]-3-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	93805-02-8
Molecular Formula	C33H34N2Na2O8S2
Molecular Weight	696.73 g/mol
Synonyms	Disodium 4-[bis[4-(dimethylamino)phenyl]methyl]-3-hydroxynaphthalene-2,7-disulfonate; 4-[Bis[4-(dimethylamino)phenyl]methyl]-3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt; Victoria Blue B precursor; C.I. 42595 intermediate; Basic Blue 7 intermediate; Triphenylmethane dye intermediate; 93805-02-8; 4-[Bis(p-dimethylaminophenyl)methyl]-3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 4-[Bis[4-(Dimethylamino)Phenyl]Methyl]-3-Hydroxynaphthalene-2,7-Disulphonate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics are available upon request to support your quality assurance protocols.

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 sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility	Soluble in water, slightly soluble in ethanol
Heavy Metals (as Pb)	≤ 20 ppm

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