Description

Ethyl 2-[[3-Allyl-5-[(1-Ethyl-1H-Quinolin-4-Ylidene)Ethylidene]-4-Oxothiazolidin-2-Ylidene]Methyl]-3-Ethyl-5,6-Dimethylbenzoxazolium Sulphate is a specialized cationic dye intermediate belonging to the cyanine dye class, characterized by its complex heterocyclic structure. This compound is valued for its strong light-absorbing and fluorescent properties, making it a critical component in advanced optical applications. It is primarily sought after by manufacturers in the photographic, optical data storage, and laser technology sectors, as well as for research into novel photodynamic therapy agents and nonlinear optical materials.

Application

• Photosensitizer and Dye Precursor: A key intermediate in the synthesis of near-infrared (NIR) absorbing cyanine dyes for optical recording media (e.g., CD-R, DVD-R).
• Laser Technology: Used in the formulation of laser dyes and materials for tunable dye lasers and optical switches.
• Biomedical Imaging: Serves as a starting material for developing fluorescent probes and markers for biological research and diagnostic assays.
• Photodynamic Therapy (PDT) Research: Investigated as a potential precursor for photosensitizing agents used in targeted cancer treatments.
• Nonlinear Optical (NLO) Materials: Employed in research for creating organic compounds with high second- or third-order nonlinear optical susceptibility for photonic devices.
• Analytical Chemistry: Can be utilized as a staining agent or a complexometric indicator in specific chromatographic or spectroscopic methods.

Basic Information

Item	Details
Product Name	Ethyl 2-[[3-Allyl-5-[(1-Ethyl-1H-Quinolin-4-Ylidene)Ethylidene]-4-Oxothiazolidin-2-Ylidene]Methyl]-3-Ethyl-5,6-Dimethylbenzoxazolium Sulphate
CAS No.	93857-83-1
Molecular Formula	C₃₃H₃₅N₃O₅S₂
Molecular Weight	617.78 g/mol
Synonyms	Ethyl 2-[[3-Allyl-5-[(1-ethyl-4(1H)-quinolylidene)ethylidene]-4-oxo-2-thiazolidinylidene]methyl]-3-ethyl-5,6-dimethylbenzoxazolium sulfate; Cyanine dye intermediate 93857-83-1; Benzoxazolium, 2-[[3-allyl-5-[(1-ethyl-4(1H)-quinolylidene)ethylidene]-4-oxo-2-thiazolidinylidene]methyl]-3-ethyl-5,6-dimethyl-, sulfate (1:1); 1-Ethyl-2-[[3-allyl-5-[(1-ethyl-1,4-dihydroquinolin-4-ylidene)ethylidene]-4-oxo-1,3-thiazolidin-2-ylidene]methyl]-5,6-dimethyl-1,3-benzoxazol-3-ium sulfate
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty chemical adheres to strict internal quality standards to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your R&D and manufacturing quality systems.

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 and should be handled under appropriate conditions to prevent degradation. Keep the container sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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