Description

3-ETHYL-2-[(3-([3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]METHYL)-5,5-DIMETHYL-2-CYCLOHEXEN-1-YLIDENE)METHYL]-5-METHOXY-1,3-BENZOTHIAZOL-3-IUM 4-METHYLBENZENESULFONATE is a specialized cationic cyanine dye salt, valued for its strong and tunable photophysical properties. This compound is critical for applications requiring precise light absorption and emission characteristics in the near-infrared to visible spectrum. It is primarily utilized by researchers and manufacturers in the advanced materials, optical data storage, and biomedical imaging sectors.

Application

• Optical Data Storage Media: As a key photosensitizer or dye component in recordable CDs, DVDs, and next-generation optical discs.
• Non-Linear Optical (NLO) Materials: For the development of advanced photonic devices, optical limiters, and switches due to its large molecular hyperpolarizability.
• Laser Dyes and Tunable Dye Lasers: Serving as an active gain medium capable of producing specific wavelength outputs.
• Biomedical Imaging and Photodynamic Therapy (PDT): As a potential photosensitizing agent for diagnostic imaging and targeted light-activated treatments.
• Organic Photovoltaic (OPV) Cells: As an electron donor or acceptor material in the light-absorbing layer to improve solar energy conversion efficiency.
• Chemical Sensors and Probes: For the detection of specific ions or molecules based on colorimetric or fluorometric changes.
• Anti-Counterfeiting Inks and Security Markings: Utilizing its unique optical properties for high-security printing applications.

Basic Information

Product Name	3-ETHYL-2-[(3-([3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]METHYL)-5,5-DIMETHYL-2-CYCLOHEXEN-1-YLIDENE)METHYL]-5-METHOXY-1,3-BENZOTHIAZOL-3-IUM 4-METHYLBENZENESULFONATE
CAS No.	104434-09-5
Molecular Formula	C37H40N2O4S3
Molecular Weight	672.91 g/mol
Synonyms	3-Ethyl-2-((3-((3-ethylbenzothiazol-2(3H)-ylidene)methyl)-5,5-dimethylcyclohex-2-en-1-ylidene)methyl)-5-methoxybenzothiazol-3-ium p-toluenesulfonate; Cyanine dye, TO-3 derivative p-toluenesulfonate salt; 2-[(E)-2-[(E)-3-[(E)-2-(3-Ethyl-5-methoxy-1,3-benzothiazol-3-ium-2-yl)vinyl]-5,5-dimethylcyclohex-2-en-1-ylidene]ethylidene]-3-ethyl-1,3-benzothiazol-3-ium 4-methylbenzenesulfonate; Thiazole Orange 3 p-toluenesulfonate; TO-3 p-toluenesulfonate; 3-Ethyl-2-[(3-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene)methyl]-5-methoxybenzothiazolium p-toluenesulfonate
EINECS	Contact for details

Quality Control

Our production of this high-purity cyanine dye adheres to strict quality management protocols, ensuring batch-to-batch consistency for research and industrial applications. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. A detailed Certificate of Analysis (COA) documenting purity, identity, and key spectral properties 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax conforms
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.