Description

( E )-4-((5-Carboxy-3,3-Dimethyl-1-Octyl-3H-Indolium-2-Yl)Methylene)-2-((E )-(1-Ethyl-3,3-Dimethylindolin-2-Ylidene)Methyl)-3-Oxocyclobut-1-Enolate is a sophisticated organic dye belonging to the cyanine or polymethine class, characterized by its unique indolium and cyclobutene core structure. This compound matters for its strong and tunable photophysical properties, making it a critical functional material in advanced research and high-tech applications. It is primarily needed by industries focused on optical materials, photonics, and specialized chemical synthesis.

Application

• Nonlinear Optical (NLO) Materials: A key chromophore for developing advanced materials with second- or third-order nonlinear optical properties for telecommunications and laser technology.
• Photovoltaic Sensitizers: Potential use as a dye sensitizer in research-stage organic solar cells (DSSCs) due to its broad absorption profile.
• Fluorescent Probes & Labels: Serving as a specialized fluorescent tag or probe in biochemical and biomedical research applications.
• Optical Data Storage: A candidate material for high-density optical data storage media, leveraging its photochromic or photorefractive properties.
• Laser Dye Research: Used in the development and testing of novel tunable dye lasers.
• Advanced Organic Synthesis: An important intermediate or building block for synthesizing complex conjugated molecules and polymers.
• Photopolymerization Initiators: Can be utilized in photoinitiator systems for specialized curing applications in coatings and resins.
• Academic & Industrial R&D: Fundamental research in photochemistry, material science, and supramolecular chemistry.

Basic Information

Product Name	( E )-4-((5-Carboxy-3,3-Dimethyl-1-Octyl-3H-Indolium-2-Yl)Methylene)-2-((E )-(1-Ethyl-3,3-Dimethylindolin-2-Ylidene)Methyl)-3-Oxocyclobut-1-Enolate
CAS No.	951248-19-4
Molecular Formula	C39H48N2O4
Molecular Weight	608.81 g/mol
Synonyms	Cyclobutene-based Cyanine Dye; 1-Octyl-5-carboxy-2-[(1E,3E)-3-(1-ethyl-3,3-dimethyl-2-indolinylidene)-1-propen-1-yl]-3,3-dimethyl-3H-indolium-4-olate; Polymethine Dye 951248-19-4; (E,E)-Cyclobutene Dye Derivative; 4-[(5-Carboxy-3,3-dimethyl-1-octylindol-2-ylidene)methyl]-2-[(1-ethyl-3,3-dimethylindolin-2-ylidene)methyl]-3-oxocyclobut-1-en-1-olate; Heptamethine Cyanine Analog; Indolium Cyclobutene Enolate
EINECS	Contact for details

Quality Control

Our production of this high-value specialty chemical adheres to strict quality management protocols. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and performance consistency. Certificates of Analysis (COA) detailing key parameters such as assay (HPLC), absorbance profile, and impurity levels are provided and available upon request. We support customized specifications to meet specific research or formulation requirements.

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 tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Assay (HPLC)	≥ 95.0%
λmax (Absorption)	Contact for details
Moisture (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.