Description

1H-Benzimidazolium, 6-chloro-2-[3-[5-chloro-3-ethyl-1,3-dihydro-1-(3-sulfopropyl)-6-(trifluoromethyl)-2H-benzimidazol-2-ylidene]-1-propenyl]-1-ethyl-3-(3-sulfopropyl)-5-(trifluoromethyl)-, hydroxide, inner salt, sodium salt is a high-purity, functional dye intermediate belonging to the cyanine dye class, characterized by its sulfonated and trifluoromethylated benzimidazolium structure. This compound is valued for its excellent photostability and water solubility, making it a critical component in advanced optical applications. It is primarily sought by manufacturers in the imaging, diagnostics, and specialty chemical sectors for developing high-performance products.

Application

• Fluorescent Labeling Reagent: Used in the synthesis of fluorescent probes and tags for biological imaging and flow cytometry.
• Laser Dye Intermediate: A key precursor for manufacturing near-infrared (NIR) absorbing and emitting dyes for laser technology and optical sensors.
• Diagnostic Assays: Incorporated into the development of diagnostic kits and biosensors due to its stable fluorescence properties.
• Photodynamic Therapy (PDT) Agents: Serves as a building block for photosensitizers used in medical therapeutic applications.
• Optical Data Storage Materials: Utilized in research for next-generation recording media and security inks.
• Non-linear Optical Materials: Employed in the research and development of materials for photonics and optoelectronics.

Basic Information

Product Name	1H-Benzimidazolium, 6-chloro-2-[3-[5-chloro-3-ethyl-1,3-dihydro-1-(3-sulfopropyl)-6-(trifluoromethyl)-2H-benzimidazol-2-ylidene]-1-propenyl]-1-ethyl-3-(3-sulfopropyl)-5-(trifluoromethyl)-, hydroxide, inner salt, sodium salt
CAS No.	33628-05-6
Molecular Formula	C31H30Cl2F6N4O6S2Na
Molecular Weight	809.60 g/mol
Synonyms	IR-786 perchlorate (common trade name); Benz[e]indolium, 2-[2-[2-chloro-3-[(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-1,3,3-trimethyl-, perchlorate (related compound name); Cyanine dye, NIR heptamethine cyanine dye intermediate; 6-Chloro-2-[3-[5-chloro-3-ethyl-1-(3-sulfopropyl)benzimidazol-2-ylidene]propenyl]-1-ethyl-3-(3-sulfopropyl)benzimidazolium hydroxide, inner salt, sodium salt; Sulfonated cyanine dye sodium salt; CAS 33628-05-6; Near-infrared dye intermediate
EINECS	Contact for details

Quality Control

Our production of this cyanine dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity for sensitive optical applications. Quality is verified through advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, 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. For long-term storage, consider desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to blue-black powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to reference spectrum
Purity (HPLC, Area %)	≥ 95.0%
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.