Description

2-[3-[1-[2-Acetoxy-3-Sulphonatopropyl]-5,6-Dichloro-3-Ethyl-1,3-Dihydro-2H-Benzimidazol-2-Ylidene]Prop-1-Enyl]-3-Ethylbenzoxazolium is a high-purity, functionalized benzimidazolium-benzoxazolium dye intermediate, valued for its precise molecular structure and reactive sites. This compound is critical for synthesizing advanced near-infrared (NIR) absorbing dyes and functional pigments with specific optical and electronic properties. It is essential for manufacturers in the optical data storage, security printing, and specialty chemical imaging sectors who require consistent, high-quality intermediates for product development.

Application

• Key intermediate for the synthesis of cyanine and polymethine dyes used in optical recording media (e.g., CD-R, DVD-R).
• Precursor for NIR-absorbing security inks and pigments utilized in banknote printing, brand protection, and anti-counterfeiting measures.
• Building block for functional dyes in biomedical imaging, including potential applications in fluorescence labeling and photodynamic therapy.
• Raw material for sensitizers and photoinitiators in advanced photopolymerization and lithographic processes.
• Component in the research and development of organic semiconductors and non-linear optical (NLO) materials.
• Used in the formulation of specialized laser dyes and optical filters for scientific and industrial equipment.

Basic Information

Product Name	2-[3-[1-[2-Acetoxy-3-Sulphonatopropyl]-5,6-Dichloro-3-Ethyl-1,3-Dihydro-2H-Benzimidazol-2-Ylidene]Prop-1-Enyl]-3-Ethylbenzoxazolium
CAS No.	68239-65-6
Molecular Formula	C28H31Cl2N3O6S
Molecular Weight	600.54 g/mol
Synonyms	2-[3-[1-[2-Acetoxy-3-Sulfonatopropyl]-5,6-dichloro-3-ethyl-1,3-dihydro-2H-benzimidazol-2-ylidene]prop-1-enyl]-3-ethylbenzoxazolium; 2-[3-[1-[2-Acetoxy-3-sulfopropyl]-5,6-dichloro-3-ethyl-2-benzimidazolinylidene]-1-propenyl]-3-ethylbenzoxazolium; Benzimidazolium, 2-[3-[1-[2-(acetyloxy)-3-sulfopropyl]-5,6-dichloro-3-ethyl-2-benzimidazolinylidene]-1-propenyl]-3-ethyl-, inner salt; NIR Cyanine Dye Intermediate; Sulfoindocyanine dye precursor; Heptamethine cyanine dye derivative
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency for critical applications. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and mass spectrometry. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles 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 place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a low-humidity environment to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 5.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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