Description

Setocyanine is a specialized organic compound belonging to the cyanine dye family, valued for its unique photophysical properties. This chemical is a critical intermediate and functional material in advanced research and high-tech manufacturing processes. It is primarily sought after by industries focused on optical materials, imaging technologies, and specialized organic synthesis.

Application

• As a key intermediate in the synthesis of advanced cyanine dyes for photographic sensitizers.
• In the research and development of fluorescent probes and markers for biological imaging and diagnostics.
• For the formulation of optical recording media and light-absorbing layers in electronic applications.
• As a functional component in the development of non-linear optical (NLO) materials.
• In academic and industrial research as a building block for novel photochromic and electrochromic compounds.
• Potential use in the sensitization layer of solar cells and other photoelectronic devices.

Basic Information

Product Name	Setocyanine
CAS No.	3943-82-6
Molecular Formula	C23H23N2O3S
Molecular Weight	407.50 g/mol
Synonyms	1-Ethyl-2-[(1-ethyl-2(1H)-quinolinylidene)methyl]quinolinium 4-methylbenzenesulfonate; Quinolinium, 1-ethyl-2-[(1-ethyl-2(1H)-quinolinylidene)methyl]-, 4-methylbenzenesulfonate; Setocyanin; Sensitizing Dye 1402; Cyanine dye 3943-82-6; 2-[2-(1-Ethylquinolin-1-ium-2-yl)vinyl]-1-ethylquinolin-1-ium 4-methylbenzenesulfonate
EINECS	223-529-8

Quality Control

Our Setocyanine is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark green to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.