Description

1-Ethyl-4-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide is a specialized cyanine dye salt, a high-value organic intermediate prized for its strong light-absorbing and fluorescent properties. Its core value lies in its ability to act as a sensitizer and spectral sensitizer, making it critical for advanced optical and imaging applications. This compound is essential for manufacturers and research institutions in the photographic, laser dye, and biomedical imaging sectors requiring precise light interaction.

Application

• Spectral Sensitizer for Silver Halide Photography: Extends the spectral sensitivity of photographic emulsions into specific wavelength regions.
• Laser Dye Intermediate: Used in the synthesis of tunable dye lasers for scientific and medical equipment.
• Biomedical Fluorescent Probes & Stains: Serves as a key precursor for developing fluorescent labels used in cellular imaging and diagnostic assays.
• Optical Data Storage Materials: A component in research for next-generation recording media.
• Non-Linear Optical (NLO) Materials: Investigated for use in photonic devices due to its large molecular polarizability.
• Organic Photovoltaic (OPV) Research: Studied as a potential electron donor or acceptor material in solar cell applications.

Basic Information

Product Name	1-Ethyl-4-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide
CAS No.	2642-25-3
Molecular Formula	C23H23IN2S
Molecular Weight	486.41 g/mol
Synonyms	1-Ethyl-4-[(3-ethyl-2(3H)-benzothiazolylidene)propenyl]quinolinium iodide; Quinolinium, 1-ethyl-4-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propen-1-yl]-, iodide; Cyanine dye 2642-25-3; 2-[3-(1-Ethyl-4(1H)-quinolinylidene)-1-propen-1-yl]-3-ethylbenzothiazolium iodide; Astrazon Orange G; Basic Orange 21; C.I. 48035
EINECS	220-161-7

Quality Control

Our production of this cyanine dye adheres to strict batch-to-batch consistency protocols. Quality is verified through advanced analytical techniques including HPLC, NMR, and spectrophotometry to ensure precise chemical structure and purity. A comprehensive Certificate of Analysis (COA) detailing identity, assay, 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 place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light). Keep the container tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Methanol)	Clear, intense colored solution
Absorption λmax	Contact for details

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