Description

2-[3-[5,6-Dichloro-1,3-Dihydro-1-(2-Hydroxyethyl)-3-Methyl-2H-Benzimidazol-2-Ylidene]Prop-1-Enyl]-3-Ethyl-5-Phenylbenzoxazolium Toluene-p-Sulphonate is a high-purity, specialized organic salt belonging to the cyanine dye class, valued for its unique photophysical properties. This compound is a critical advanced intermediate for synthesizing functional dyes and pigments with specific light-absorption and emission characteristics. It is primarily required by manufacturers in the optical data storage, laser technology, and specialty chemical imaging sectors, where precise molecular performance is non-negotiable.

Application

• Optical Data Storage Media: A key sensitizer/photosensitizer in the production of recordable (CD-R, DVD-R) and high-density optical discs.
• Laser Dye & Nonlinear Optical Materials: Used in the formulation of tunable laser dyes and materials for frequency doubling and other photonic applications.
• Biomedical Imaging & Staining: Serves as a precursor for developing fluorescent probes and stains for biological and diagnostic assays.
• Photopolymerization & Photoinitiation Systems: Acts as a photoinitiator or co-initiator in UV-curable inks, coatings, and photoresists.
• Organic Photovoltaic (OPV) Research: Investigated as an electron donor or acceptor material in the development of next-generation solar cells.
• Security Inks & Anti-Counterfeiting: Utilized in the manufacture of inks with specific infrared or fluorescent markers for document and brand protection.

Basic Information

Item	Details
Product Name	2-[3-[5,6-Dichloro-1,3-Dihydro-1-(2-Hydroxyethyl)-3-Methyl-2H-Benzimidazol-2-Ylidene]Prop-1-Enyl]-3-Ethyl-5-Phenylbenzoxazolium Toluene-p-Sulphonate
CAS No.	84434-32-2
Molecular Formula	C36H35Cl2N3O5S
Molecular Weight	700.66 g/mol
Synonyms	NK-2016; 5,6-Dichloro-1-ethyl-2-[3-(3-ethyl-2(3H)-benzoxazolylidene)-1-propenyl]benzimidazolium p-toluenesulfonate; Cyanine dye NK-2016; 2-[3-(5,6-Dichloro-1-ethyl-3-methyl-1,3-dihydro-2H-benzimidazol-2-ylidene)prop-1-en-1-yl]-3-ethyl-5-phenyl-1,3-benzoxazol-3-ium 4-methylbenzenesulfonate; Benzimidazolium, 5,6-dichloro-1-ethyl-2-[3-(3-ethyl-2(3H)-benzoxazolylidene)-1-propenyl]-, p-toluenesulfonate; Optical disc dye NK-2016
EINECS	Contact for details

Quality Control

Our production of this advanced cyanine dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability for critical applications. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting purity, identity, and key performance indicators.

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 material is hygroscopic (moisture-sensitive); ensure the container is sealed under an inert atmosphere or with desiccant to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Absorption Max (λmax)	Specified range provided per grade

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