Description

2-[3-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-1,3,3-Trimethyl-3H-Indolium Acetate is a high-purity cyanine dye salt, a key intermediate and functional material prized for its strong near-infrared absorption and fluorescence properties. It is essential for applications requiring precise photophysical characteristics, such as optical data storage, laser technology, and advanced biomedical imaging. This compound is primarily utilized by manufacturers and research institutions in the photonics, electronics, and life science sectors.

Application

• Optical Data Storage Media: A critical component in the formulation of recordable CD-R and DVD-R dyes.
• Laser Technology: Used as a gain medium or saturable absorber in tunable dye lasers operating in the near-infrared region.
• Biomedical Imaging & Diagnostics: Serves as a fluorescent probe or labeling agent for in vivo and in vitro imaging, including fluorescence-guided surgery.
• Nonlinear Optics (NLO): Employed in the development of materials for optical limiting, switching, and frequency conversion due to its high polarizability.
• Photodynamic Therapy (PDT): Investigated as a potential photosensitizer for targeted cancer treatments.
• Security Inks & Dyes: Used in anti-counterfeiting measures for currency, documents, and high-value goods due to its specific spectral signature.
• Solar Energy Research: Studied as a component in dye-sensitized solar cells (DSSCs) for light harvesting.
• Academic & Industrial R&D: A fundamental building block for synthesizing novel cyanine dyes and exploring new photonic applications.

Basic Information

Item	Detail
Product Name	2-[3-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-1,3,3-Trimethyl-3H-Indolium Acetate
CAS No.	65122-08-9
Molecular Formula	C27H32N2O2
Molecular Weight	416.56 g/mol
Synonyms	1H-Indolium, 2-[3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propenyl]-1,3,3-trimethyl-, acetate (1:1); Cyanine dye, IR-125; 2-[3-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propenyl]-1,3,3-trimethyl-1H-indolium acetate; 1,3,3-Trimethyl-2-[3-(1,3,3-trimethylindolin-2-ylidene)propenyl]-3H-indolium acetate; IR 125; NK 125; Astrazon IR 125
EINECS	Contact for details

Quality Control

Our 2-[3-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-1,3,3-Trimethyl-3H-Indolium Acetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical quality attributes are provided and available upon request.

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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, handling should be conducted under subdued lighting where practical.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC, Area %)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility Test	Freely soluble in methanol, ethanol; soluble in DMSO

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