Description

1H-BENZ[E]INDOLIUM, 2-[2-[2-CHLORO-3-[(1,3-DIHYDRO-1,1,3-TRIMETHYL-2H-BENZ[E]INDOL-2-YLIDENE)ETHYLIDENE]-1-CYCLOHEXEN-1-YL]ETHENYL]-1,1,3-TRIMETHYL-, SALT WITH 4-METHYLBENZENESULFONIC ACID (1:1) is a high-purity, functional organic salt belonging to the cyanine dye family. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced optical applications. It is primarily sought by manufacturers and researchers in the photonics, biomedical imaging, and specialty chemical synthesis sectors.

Application

• NIR Fluorescent Dyes & Probes: A key chromophore for synthesizing fluorescent labels used in bioimaging, flow cytometry, and in vivo diagnostics.
• Optical Data Storage: As a light-absorbing material in the active layers of recordable CDs, DVDs, and next-generation optical storage media.
• Laser & Photonic Materials: Used in the formulation of dye lasers, optical limiters, and non-linear optical (NLO) materials due to its tunable absorption characteristics.
• Solar Cell Research: Investigated as a potential sensitizer in dye-sensitized solar cells (DSSCs) for light harvesting in the near-infrared spectrum.
• Photodynamic Therapy (PDT) Research: Serves as a starting material or intermediate for developing photosensitizers in therapeutic applications.
• Analytical Chemistry Reagents: Employed in the development of chemical sensors and indicators responsive to specific environmental conditions.
• Specialty Polymer Additives: Incorporated into polymers to impart specific optical properties for security inks, coatings, and films.
• Academic & Industrial R&D: Serves as a crucial intermediate for novel organic synthesis and materials science research.

Basic Information

Item	Information
Product Name	1H-BENZ[E]INDOLIUM, 2-[2-[2-CHLORO-3-[(1,3-DIHYDRO-1,1,3-TRIMETHYL-2H-BENZ[E]INDOL-2-YLIDENE)ETHYLIDENE]-1-CYCLOHEXEN-1-YL]ETHENYL]-1,1,3-TRIMETHYL-, SALT WITH 4-METHYLBENZENESULFONIC ACID (1:1)
CAS No.	134127-48-3
Molecular Formula	C39H41ClNO3S
Molecular Weight	639.27 g/mol
Synonyms	IR-1061; Cryptocyanine Derivative; 2-[2-[2-Chloro-3-[(1,3-dihydro-1,1,3-trimethyl-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-1,1,3-trimethyl-1H-benz[e]indolium p-toluenesulfonate; NIR Cyanine Dye Salt; 1,1,3-Trimethyl-2-[2-[2-chloro-3-[(1,3-dihydro-1,1,3-trimethyl-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-1H-benz[e]indolium 4-methylbenzenesulfonate; Cyanine dye with tosylate counterion; Benzoindolium cyanine dye salt; Cryptocyanine IR-1061 analog
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. The material is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance maxima, and impurity profiles is provided with each 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). This product is hygroscopic (moisture-sensitive) and light-sensitive; ensure containers are sealed under an inert atmosphere if specified and opened only in a dry environment.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Loss on Drying	≤ 2.0 %
Absorption Maxima (λmax)	1060 ± 10 nm (in suitable solvent)
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.