Description

1-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide is a specialized cyanine dye salt, a high-value synthetic intermediate and functional material prized for its distinct photophysical properties. Its primary commercial value lies in its ability to act as a sensitizer and light-absorbing chromophore, making it critical for advanced optical applications. This compound is essential for B2B buyers in the photographic, optical data storage, and laser dye industries, where precise molecular performance is non-negotiable.

Application

• Sensitizing Dye for Silver Halide Photography: Used in the formulation of spectral sensitizers for photographic emulsions to extend light sensitivity into specific wavelength ranges.
• Optical Data Storage Media: A key component in the active layer of recordable (e.g., CD-R, DVD-R) optical discs, where it functions as an organic dye.
• Laser Dye Precursor: Serves as a starting material or intermediate in the synthesis of near-infrared (NIR) absorbing cyanine dyes for tunable dye lasers.
• Non-Linear Optical (NLO) Materials: Investigated for use in the development of materials for photonics, optical switching, and frequency doubling due to its conjugated structure.
• Biomedical Staining and Labeling: Potential application as a fluorescent probe or stain in biological imaging and diagnostic assays, subject to further purification and qualification.
• Organic Semiconductor Research: Used in academic and industrial R&D for constructing organic light-emitting diodes (OLEDs) or photovoltaic cells.

Basic Information

Product Name	1-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide
CAS No.	18248-94-7
Molecular Formula	C23H23IN2S
Molecular Weight	486.41 g/mol
Synonyms	1-Ethyl-2-[(1E,3E)-3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propen-1-yl]quinolinium iodide; Quinolinium, 1-ethyl-2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]-, iodide; Cyanine dye, NK-2016; NK 2016; 2-[3-(1-Ethyl-4(1H)-quinolinylidene)-1-propenyl]-3-ethylbenzothiazolium iodide; Benzothiazolium, 2-[3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl]-3-ethyl-, iodide
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to strict batch-to-batch consistency protocols, ensuring the photochemical performance required for sensitive optical applications. Quality is verified through advanced analytical techniques including HPLC for purity, UV-Vis spectroscopy for absorbance profile verification, and NMR for structural confirmation. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and performance-related specifications 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). The product is light-sensitive; prolonged exposure to light should be avoided to prevent degradation of its optical properties. Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax conforms to reference
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0 %
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.