Description

n-[4-[(3-Carboxy-4-Hydroxy-6-Sulfonato-1-Naphthalenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium is a high-purity, water-soluble organic dye intermediate belonging to the triarylmethane class. This compound is valued for its strong chromophoric properties and ability to form stable complexes, making it a critical precursor in the synthesis of specialized dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vivid colors and functional colorants.

Application

• Dye and Pigment Synthesis: A key intermediate for manufacturing triarylmethane dyes, including acid dyes and cationic dyes.
• Textile Industry: Used in the production of dyes for coloring wool, silk, and nylon fibers.
• Ink Formulation: Serves as a precursor for colorants in printing inks, including ballpoint pen inks and inkjet inks.
• Biological Staining: Potential use as an intermediate for histological stains and indicators in laboratory settings.
• Analytical Chemistry: Can be utilized in the synthesis of colorimetric reagents and pH indicators.
• Specialty Coatings: Employed in the development of functional coatings and colorants for plastics and polymers.

Basic Information

Product Name	n-[4-[(3-Carboxy-4-Hydroxy-6-Sulfonato-1-Naphthalenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium
CAS No.	6797-96-2
Molecular Formula	C28H25N2O6S-
Molecular Weight	505.57 g/mol
Synonyms	Acid Blue 93; Aniline Blue WS; Bleu 3; CI 42780; Erioglaucine A; Methyl Blue; Cotton Blue; Ink Blue; Water Blue; Triphenylmethane Blue; [4-[α-[4-(Dimethylamino)phenyl]-2,4-disulfo-5-hydroxy-1-naphthylmethylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium hydroxide inner salt
EINECS	229-880-6

Quality Control

Our production of n-[4-[(3-Carboxy-4-Hydroxy-6-Sulfonato-1-Naphthalenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, identity, and specific impurity profiles are provided with each shipment.

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 incompatible materials such as strong oxidizing agents. The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Water Solubility	Freely soluble
λmax (in water)	630 - 640 nm

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