Description

3-Ethyl-2-[2-[(3-Ethyl-5-Phenyl-3H-Benzoxazol-2-Ylidene)Methyl]But-1-Enyl]-5-Phenylbenzoxazolium Bromide is a specialized cationic dye belonging to the benzoxazolium class, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is engineered for applications requiring high-performance optical characteristics and photostability. It is primarily utilized by manufacturers and researchers in the advanced materials, optical data storage, and laser technology sectors, as well as in the development of specialized chemical sensors and bio-imaging agents.

Application

• Optical Data Storage Media: As a key dye component in recordable CD-R and DVD-R discs for its specific light-absorption profile.
• Laser Dyes & Optical Filters: Used in the formulation of tunable dye lasers and the production of optical filters due to its sharp absorption bands.
• Non-Linear Optical (NLO) Materials: A building block for advanced materials used in photonics, telecommunications, and optical computing.
• Chemical Sensing & Bio-imaging Probes: Employed in the synthesis of fluorescent probes and sensors for detecting ions or biomolecules.
• Solar Energy & Photovoltaics: Investigated for use in dye-sensitized solar cells (DSSCs) and other light-harvesting applications.
• Security Inks & Anti-Counterfeiting: Utilized in high-security printing for banknotes and documents due to its unique fluorescent properties.

Basic Information

Product Name	3-Ethyl-2-[2-[(3-Ethyl-5-Phenyl-3H-Benzoxazol-2-Ylidene)Methyl]But-1-Enyl]-5-Phenylbenzoxazolium Bromide
CAS No.	28118-15-2
Molecular Formula	C35H31BrN2O2
Molecular Weight	591.54 g/mol
Synonyms	3-Ethyl-2-[(1E,3E)-4-(3-ethyl-5-phenyl-1,3-benzoxazol-2(3H)-ylidene)but-1-en-1-yl]-5-phenyl-1,3-benzoxazol-3-ium bromide; Benzoxazolium, 3-ethyl-2-[2-[(3-ethyl-5-phenyl-3H-benzoxazol-2-ylidene)methyl]-1-butenyl]-5-phenyl-, bromide; NIR Dye; Cyanine Dye analogue; Heptamethine Cyanine Dye derivative; Optical Storage Dye 28118-15-2
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty dye adheres to strict quality management protocols. Every batch is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to ensure consistency and performance for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccant or inert atmosphere conditions.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in dichloromethane, DMF, DMSO
Absorption λmax	Contact for details

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