Description

Sodium 3-[5,6-Dichloro-2-[3-[5,6-Dichloro-1-Ethyl-3-(4-Sulfonatophenethyl)Benzimidazolin-2-Ylidene]-1- Propenyl]-1-Ethyl-3-Benzimidazolio] Propanesulfonate is a high-purity, water-soluble cyanine dye derivative characterized by its distinct chromophoric properties. This compound is valued for its strong and stable near-infrared (NIR) fluorescence, making it an essential component in advanced diagnostic and imaging applications. It is primarily utilized by manufacturers in the life sciences, biotechnology, and medical diagnostics sectors for developing sensitive assays and probes.

Application

• Fluorescent Labeling Agent: Used as a covalent label for proteins, antibodies, and nucleic acids in bio-conjugation for fluorescence detection.
• Biological Imaging Probes: A key component in the formulation of NIR fluorescent probes for in vitro and in vivo cellular and tissue imaging.
• Diagnostic Assay Development: Employed in the manufacture of diagnostic kits, including ELISA and lateral flow assays, for high-sensitivity detection.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in preclinical research for targeted cancer therapies.
• Optical Sensor Fabrication: Integrated into polymer matrices or nanomaterials to create sensors for detecting specific biological or chemical analytes.
• Material Science Research: Used in academic and industrial R&D for studying energy transfer processes and developing novel photonic materials.

Basic Information

Product Name	Sodium 3-[5,6-Dichloro-2-[3-[5,6-Dichloro-1-Ethyl-3-(4-Sulfonatophenethyl)Benzimidazolin-2-Ylidene]-1- Propenyl]-1-Ethyl-3-Benzimidazolio] Propanesulfonate
CAS No.	93054-07-0
Molecular Formula	C39H36Cl4N4Na2O6S2
Molecular Weight	922.66 g/mol
Synonyms	IR-783; SDB 783; NIR Dye IR-783; Cyanine Dye IR-783; 1,1',3,3,3',3'-Hexamethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate (related analog); Benzimidazolium, 5,6-dichloro-2-[3-[5,6-dichloro-1-ethyl-3-(4-sulfonatophenethyl)-1H-benzimidazol-2(3H)-ylidene]-1-propen-1-yl]-1-ethyl-3-(3-sulfopropyl)-, inner salt, sodium salt (1:2); Sodium IR-783; SDB-783 Dye
EINECS	Contact for details

Quality Control

Our Sodium 3-[5,6-Dichloro-2-[3-[5,6-Dichloro-1-Ethyl-3-(4-Sulfonatophenethyl)Benzimidazolin-2-Ylidene]-1- Propenyl]-1-Ethyl-3-Benzimidazolio] Propanesulfonate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Each lot is analyzed for critical parameters including identity, purity, and spectral properties. A comprehensive Certificate of Analysis (COA) detailing HPLC purity, absorbance/fluorescence maxima, and other relevant specifications is provided with every shipment to support your quality assurance protocols.

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 tightly after each use to prevent absorption of atmospheric moisture. For long-term storage, consider desiccated conditions.

Specification

Item	Specification
Appearance	Dark green to blue-black powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 95.0%
Absorbance Maxima (λmax)	783 nm ± 5 nm (in methanol)
Fluorescence Maxima (λem)	805 nm ± 10 nm (in methanol)
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.