Description

5,5'-Dicyano-3-(4-Sulfobutyl)-1,1',3'-Triethylimidacarbocyanine Betaine is a specialized cyanine dye derivative characterized by its zwitterionic betaine structure, which enhances its solubility and stability in aqueous environments. This compound is critical for applications requiring high-performance near-infrared (NIR) fluorescence and photostability. It is primarily sought by researchers and manufacturers in the biotechnology, diagnostics, and advanced materials sectors for its unique spectral properties.

Application

• Fluorescent Labeling and Probes: Used as a covalent label for biomolecules (proteins, nucleic acids) in fluorescence microscopy and flow cytometry due to its high molar absorptivity and quantum yield.
• Optical Imaging Agents: Serves as a key component in the development of contrast agents for in vivo and in vitro NIR fluorescence imaging applications.
• Laser Dye and Photonic Materials: Employed in the formulation of tunable dye lasers and as a dopant in the research of organic light-emitting diodes (OLEDs) and nonlinear optical materials.
• Sensor Development: Integral to constructing chemical and biological sensors that rely on fluorescence resonance energy transfer (FRET) or photo-induced electron transfer (PET) mechanisms.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in preclinical studies for targeted cancer therapies.
• Analytical Reagent: Functions as a sensitive staining agent in gel electrophoresis and capillary electrophoresis for the detection and quantification of biomolecules.

Basic Information

Product Name	5,5'-Dicyano-3-(4-Sulfobutyl)-1,1',3'-Triethylimidacarbocyanine Betaine
CAS No.	32634-36-9
Molecular Formula	C31H35N5O3S
Molecular Weight	557.71 g/mol
Synonyms	IR-786 Betaine; 3-(4-Sulfobutyl)-5,5'-dicyano-1,1',3'-triethylimidacarbocyanine Betaine; Cyanine Dye IR-786 Sulfobutyl Betaine; NIR-786 Dye; 1,1',3'-Triethyl-5,5'-dicyano-3-(4-sulfobutyl)imidacarbocyanine Betaine; Imidacarbocyanine Betaine Dye; IR-786 Sulfobutyl Cyanine Betaine; 32634-36-9
EINECS	Contact for details

Quality Control

Our production of 5,5'-Dicyano-3-(4-Sulfobutyl)-1,1',3'-Triethylimidacarbocyanine Betaine adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, essential for sensitive research and diagnostic applications. All materials are characterized by advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and spectral properties is provided with every shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry environment. The product is light-sensitive (store away from light). For long-term storage, consider desiccation to maintain stability.

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)	≤ 2.0%
Residue on Ignition	≤ 1.0%
Absorption Max (λmax)	780 - 790 nm (in methanol)
Emission Max (λem)	805 - 815 nm (in methanol)

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