Description

Cyanine CAS NO 523-42-2 is a synthetic organic dye belonging to the polymethine cyanine family, characterized by its intense color and strong light absorption properties. This compound is a critical functional material valued for its ability to absorb and emit light in specific, tunable wavelengths. It is essential for researchers and manufacturers in industries requiring precise photophysical properties, such as optical data storage, biomedical imaging, and advanced material science. Its consistent quality and performance make it a reliable component for high-tech applications.

Application

• Optical Data Storage: Used as a key dye layer in recordable (R) and rewritable (RW) compact discs (CDs) and digital versatile discs (DVDs).
• Biomedical Imaging & Diagnostics: Serves as a fluorescent probe or label in bioassays, flow cytometry, and fluorescence microscopy for cellular and molecular detection.
• Laser Technology: Functions as a gain medium or saturable absorber in tunable dye lasers and other photonic devices.
• Nonlinear Optics (NLO): Employed in research and development of materials for optical limiting, switching, and frequency conversion due to its high polarizability.
• Photodynamic Therapy (PDT): Investigated as a potential photosensitizer for targeted cancer treatments.
• Chemical Sensors: Utilized in the development of optochemical sensors for detecting ions, gases, or biomolecules based on colorimetric or fluorometric changes.

Basic Information

Product Name	Cyanine
CAS No.	523-42-2
Molecular Formula	C25H25IN2
Molecular Weight	480.38 g/mol
Synonyms	1-Ethyl-2-[3-(1-ethyl-1H-benzimidazol-2-ylidene)propenyl]benzimidazolium iodide; 1,1'-Diethyl-2,2'-cyanine iodide; Cryptocyanine; Dye 26; Pinacyanol iodide; Quinocyanine; 2-[3-(1-Ethyl-1H-benzimidazol-2-yl)-2-propen-1-ylidene]-1-ethyl-1H-benzimidazolium iodide
EINECS	208-348-1

Quality Control

Our Cyanine CAS NO 523-42-2 is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, UV-Vis spectroscopy for absorbance profile verification, and identity confirmation via IR and NMR. We provide Certificates of Analysis (COA) with every shipment, detailing all specifications and test results to ensure traceability and compliance with your research or manufacturing 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 material is light-sensitive (store away from light). Keep the container tightly sealed to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Dark green crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
UV-Vis Absorbance (λmax)	590 - 610 nm (in methanol)
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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