Description

2-[5-[1,3-Dihydro-1-(3-Hydroxypropyl)-3,3-Dimethyl-2H-Indol-2-Ylidene]-1,3-Pentadien-1-Yl]-1-(3-Hydroxypropyl)-3,3-Dimethyl-3H-Indolium Chloride is a high-purity, functional cyanine dye derivative, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is critical for applications requiring precise optical characteristics and photostability. It is primarily utilized by manufacturers and researchers in the biotechnology, analytical chemistry, and advanced materials sectors.

Application

• NIR Fluorescent Labeling Agent: Used as a sensitive probe for labeling biomolecules (e.g., proteins, nucleic acids) in bioassays, flow cytometry, and immunohistochemistry.
• Optical Imaging Contrast Agent: Employed in the development of contrast agents for in vivo and in vitro imaging, including for small animal research and diagnostic applications.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in PDT for cancer treatment due to its light-absorbing characteristics.
• Laser Dye and Optical Material: Serves as a functional component in the formulation of laser dyes, optical filters, and non-linear optical materials.
• Sensor and Detector Fabrication: Integrated into chemical sensors and photodetector devices that operate in the near-infrared spectrum.
• Academic and Industrial R&D: A key intermediate or standard for synthetic chemistry and material science research focused on advanced chromophores.

Basic Information

Product Name	2-[5-[1,3-Dihydro-1-(3-Hydroxypropyl)-3,3-Dimethyl-2H-Indol-2-Ylidene]-1,3-Pentadien-1-Yl]-1-(3-Hydroxypropyl)-3,3-Dimethyl-3H-Indolium Chloride
CAS No.	182873-72-9
Molecular Formula	C34H45ClN2O2
Molecular Weight	549.19 g/mol
Synonyms	IR-783; IR 783; IR783; 1-(3-Hydroxypropyl)-3,3-dimethyl-2-[5-(1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl]-3H-indol-1-ium chloride; Cyanine dye IR-783; NIR dye IR-783; 2-[5-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3-pentadien-1-yl]-1,3,3-trimethyl-3H-indolium chloride (related structure); Heptamethine cyanine dye derivative
EINECS	Contact for details

Quality Control

Our production of 2-[5-[1,3-Dihydro-1-(3-Hydroxypropyl)-3,3-Dimethyl-2H-Indol-2-Ylidene]-1,3-Pentadien-1-Yl]-1-(3-Hydroxypropyl)-3,3-Dimethyl-3H-Indolium Chloride adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high performance. Each lot is characterized by advanced analytical techniques, and a comprehensive Certificate of Analysis (COA) detailing purity, identity, and key spectral properties is provided to support your research and quality assurance processes.

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) and light-sensitive; ensure the container is kept sealed in a desiccated environment to maintain stability and prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 3.0 %
Residue on Ignition	≤ 0.5 %
Absorption Max (λmax)	~783 nm (in suitable solvent)

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