Description

1,1'-Dioctyl-3,3,3',3'-Tetramethylindocarbocyanine Iodide is a high-purity, lipophilic cyanine dye salt widely used as a fluorescent probe and marker. Its core value lies in its excellent photostability and strong near-infrared fluorescence emission, making it indispensable for advanced imaging and detection applications. This compound is primarily needed by researchers and manufacturers in the life sciences, materials science, and diagnostic sectors for applications such as membrane labeling, flow cytometry, and the development of optical sensors.

Application

• Membrane and Lipid Bilayer Labeling: Utilized as a fluorescent tracer for studying cell membrane dynamics, fluidity, and fusion due to its lipophilic nature.
• Flow Cytometry and Cell Sorting: Serves as a vital fluorescent dye for tagging specific cellular components, enabling high-throughput analysis and isolation.
• Fluorescence Microscopy & Bioimaging: Acts as a contrast agent in near-infrared (NIR) fluorescence imaging for deep-tissue visualization and live-cell studies.
• Optical Sensor Development: Incorporated into sensor matrices for detecting ions, biomolecules, or environmental changes based on fluorescence response.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in preclinical studies for targeted cancer treatments.
• Non-Linear Optics (NLO) Materials: Used in research for developing advanced materials with specific light-absorbing and emitting properties.
• DNA and Protein Staining: Employed in specific assay formats for nucleic acid or protein detection and quantification.
• Industrial Quality Control: Applied in specialized industrial processes for trace detection and analysis where NIR fluorescence is advantageous.

Basic Information

Product Name	1,1'-Dioctyl-3,3,3',3'-Tetramethylindocarbocyanine Iodide
CAS No.	123316-86-9
Molecular Formula	C45H67IN2
Molecular Weight	754.93 g/mol
Synonyms	DiI (DiIC18(3)); 1,1'-Dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (common analog); DiIC18(3) Iodide; Dioctadecylindocarbocyanine Iodide; 3,3'-Dioctadecylindocarbocyanine Iodide; D-282; D-307; D-391; Lipophilic Tracer Dye DiI
EINECS	Contact for details

Quality Control

Our 1,1'-Dioctyl-3,3,3',3'-Tetramethylindocarbocyanine Iodide is produced under strict quality management protocols to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including HPLC for purity, spectroscopy for identity confirmation, and tests for residual solvents and moisture. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your research and quality assurance requirements.

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) and light-sensitive; therefore, containers must be kept tightly sealed in a desiccated environment and handled under low-light conditions to prevent degradation. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to purple crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Fluorescence Emission (λmax)	565 nm ± 5 nm (in methanol)
Extinction Coefficient	≥ 150,000 L·mol-1·cm-1 (at λmax)

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