Description

1 1'-Diethyl-4 4'-Dicarbocyanine Iodide is a high-purity cyanine dye salt, a critical component for advanced photonic and electronic applications. Its value lies in its exceptional light-absorbing and emitting properties within the near-infrared (NIR) spectrum. This compound is essential for researchers and manufacturers in the fields of optical data storage, laser technology, and as a sensitizer in photographic emulsions.

Application

• Optical Data Storage Media: A key photosensitizer for high-density recordable optical discs (CD-R, DVD-R).
• Laser Dye & NIR Absorbers: Used in tunable dye lasers and as an absorber in laser protective filters and optical limiters.
• Photographic Sensitization: Extends the spectral sensitivity of silver halide photographic emulsions into the infrared region.
• Biomedical Imaging Probes: Potential use in the development of fluorescent labels and contrast agents for in vivo imaging.
• Nonlinear Optical Materials: Research component for organic materials with high nonlinear optical coefficients.
• Organic Photovoltaic Research: Investigated as an electron donor or acceptor material in solar cell applications.

Basic Information

Product Name	1 1'-Diethyl-4 4'-Dicarbocyanine Iodide
CAS No.	18300-31-7
Molecular Formula	C25H25IN2
Molecular Weight	504.38 g/mol
Synonyms	1,1'-Diethyl-4,4'-dicarbocyanine iodide; DEDCI; 1-Ethyl-2-[3-(1-ethyl-1H-benzimidazol-2-ylidene)propenyl]benzimidazolium iodide; 1,1'-Diethyl-2,2'-dicarbocyanine iodide; Cryptocyanine; IR-140; NK-3195; NIR-1
EINECS	Contact for details

Quality Control

Our 1 1'-Diethyl-4 4'-Dicarbocyanine Iodide is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the stringent requirements for photonic and electronic applications. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance maxima, and other critical parameters is provided with every shipment.

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 must be kept in a desiccated environment to prevent degradation. Handle and store under inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Absorbance Max (λmax)	760 - 780 nm (in methanol)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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