Description

bis[[4-[[4-(diethylamino)phenyl][4-[ethyl(2-hydroxyethyl)amino]-2-methylphenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]ethyl(2-hydroxyethyl)ammonium] sulphate is a high-purity, cationic polymethine dye salt with the CAS number 83950-32-7. This compound is valued for its intense color properties and specific light absorption characteristics, making it a critical functional material in advanced industrial applications. It is primarily sought after by manufacturers in the optical, imaging, and specialty chemical sectors for its performance in high-tech formulations.

Application

• Optical Data Storage: As a key dye component in recordable optical media (e.g., CD-R, DVD-R).
• Laser Technology: Used in the formulation of dye-based laser gain media for specific wavelength ranges.
• Non-Linear Optics (NLO): Employed in research and development of materials for photonic and electro-optic devices.
• Sensitizer in Photopolymerization: Acts as a photoinitiator or sensitizer in UV-curable inks, coatings, and resins.
• Analytical Chemistry: Potential use as a staining agent or fluorescent probe in specialized biochemical assays.
• Specialty Inks & Pigments: For high-performance security inks or specialty colorants requiring specific spectral properties.

Basic Information

Product Name	bis[[4-[[4-(diethylamino)phenyl][4-[ethyl(2-hydroxyethyl)amino]-2-methylphenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]ethyl(2-hydroxyethyl)ammonium] sulphate
CAS No.	83950-32-7
Molecular Formula	C58H78N6O6S
Molecular Weight	987.33 g/mol
Synonyms	1H-Pyrazolium, 4,5-dihydro-1,3-dimethyl-5-oxo-1-(2-sulfooxyethyl)-, hydroxide, inner salt; Basic Blue 159; C.I. 42559; Astrazon Blue BG; Aizen Cathilon Blue BG; Diacryl Blue BG; Kayacryl Blue BG; Polymethine blue dye salt
EINECS	Contact for details

Quality Control

Our production of bis[[4-[[4-(diethylamino)phenyl][4-[ethyl(2-hydroxyethyl)amino]-2-methylphenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]ethyl(2-hydroxyethyl)ammonium] sulphate adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and spectrophotometry for color strength verification, to ensure consistent performance and batch-to-batch reliability. A comprehensive Certificate of Analysis (COA) detailing all specification parameters is 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder or crystals
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Color Strength	95 - 105% of standard
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Methanol)	Clear, complete solution

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