Description

3-[(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Ethylidene]-9-Ethyl-3H-Carbazolium Hydrogen Sulphate is a high-purity, functional organic salt belonging to the cyanine dye family, valued for its strong light-absorbing and charge-transfer properties. This compound is critical for advanced research and manufacturing processes that require precise optical and electronic characteristics. It is primarily sought by the photovoltaic, optical data storage, and specialty chemical synthesis industries for applications in sensitizers, nonlinear optical materials, and as a key intermediate for complex dyes.

Application

• Optical Sensitizer in Dye-Sensitized Solar Cells (DSSCs): Acts as a key light-harvesting component to improve photon-to-electron conversion efficiency.
• Nonlinear Optical (NLO) Materials: Used in the research and development of materials for optical switching, signal processing, and frequency conversion.
• Optical Data Storage Media: Employed in the formulation of recordable optical discs and holographic storage materials due to its photochromic potential.
• Specialty Dye Intermediate: Serves as a crucial building block for synthesizing advanced cyanine and polymethine dyes for analytical and imaging applications.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer candidate for targeted light-activated therapies.
• Chemical Sensor Development: Utilized in creating selective sensors for ions or molecules based on colorimetric or fluorescent response changes.

Basic Information

Product Name	3-[(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Ethylidene]-9-Ethyl-3H-Carbazolium Hydrogen Sulphate
CAS No.	85283-94-9
Molecular Formula	C28H31N2O4S
Molecular Weight	491.62 g/mol
Synonyms	9-Ethyl-3-[(1,3,3-trimethyl-2-indolinylidene)ethylidene]-2,3-dihydrocarbazolium hydrogen sulfate; Cyanine dye base hydrogen sulfate; 3H-Carbazolium, 9-ethyl-3-[(1,3,3-trimethyl-2-indolinylidene)ethylidene]-2,3-dihydro-, sulfate (1:1); 9-Ethyl-3-[(E)-2-(1,3,3-trimethylindolin-2-ylidene)ethylidene]-9H-carbazol-2-ium hydrogen sulfate
EINECS	Contact for details

Quality Control

Our production of 3-[(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Ethylidene]-9-Ethyl-3H-Carbazolium Hydrogen Sulphate adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and elemental analysis. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability, batch-to-batch consistency, and compliance with your research or production requirements.

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). Due to its hygroscopic nature, the container must be kept sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

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