Description

Methanaminium, n-[4-[[3,4-Bis(Sulfomethyl)Phenyl][4-(Dimethylamino) Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methyl-, Inner Salt, Sodium Salt is a specialized organic salt and a member of the triarylmethane dye family, known for its distinct chromophoric properties. This compound is valued for its ability to act as a highly sensitive colorimetric indicator and functional dye in advanced analytical and material science applications. It is primarily sought by industries involved in sensor technology, specialty inks, and research-grade chemical detection systems.

Application

• Colorimetric Sensor Fabrication: Used as a key chromogenic component in optical sensors for detecting pH changes, specific ions, or gases.
• Specialty Dye Intermediate: Serves as a precursor or active dye in the formulation of high-performance inks, toners, and coatings.
• Analytical Chemistry Reagent: Employed as a sensitive indicator in titrations and spectrophotometric analysis in laboratory settings.
• Biomedical Research: Potential use in staining protocols or as a probe in biochemical assays due to its light-absorbing characteristics.
• Photographic and Imaging Materials: Can be utilized in the synthesis of light-sensitive layers for specialized photographic films.
• Electrochromic Device Research: Investigated for use in materials that change color with applied voltage in smart window or display technologies.

Basic Information

Product Name	Methanaminium, n-[4-[[3,4-Bis(Sulfomethyl)Phenyl][4-(Dimethylamino) Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methyl-, Inner Salt, Sodium Salt
CAS No.	72797-23-0
Molecular Formula	C31H31N2O6S2Na
Molecular Weight	606.70 g/mol
Synonyms	Acid Blue 90 (C.I. 42655); Wool Blue FBL; Sodium 4-[[4-(Dimethylamino)phenyl][3,4-bis(sulfomethyl)phenyl]methylene]-2,5-cyclohexadien-1-ylidene(dimethylammonium) inner salt; C.I. 42655; Benzenemethanaminium, N-[4-[[4-(dimethylamino)phenyl][3,4-bis(sulfomethyl)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, inner salt, sodium salt; Brilliant Wool Blue FBL; Acid Blue FBL
EINECS	Contact for details

Quality Control

Our production of this specialty dye adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A Certificate of Analysis (COA) detailing purity, identity, and relevant specifications is provided with every shipment 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 a controlled room temperature (15-25°C). Keep the container tightly sealed to protect the product from moisture and atmospheric contaminants.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Clear, blue solution
λmax (Visible Spectrum)	580 - 610 nm

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