Description

1H-Benzimidazolium,5,6-Dichloro-2-[3-(5,6-Dichloro-1-Ethyl-1,3-Dihydro-3-Pentyl-2H-Benzimidazol-2-Ylidene)-1-Propenyl]-1-Ethyl-3-(4-Sulfobutyl)-, Inner Salt is a high-purity, functional organic salt belonging to the benzimidazolium dye family. This compound is valued for its unique photophysical properties, making it a critical advanced intermediate in the synthesis of specialized colorants and functional materials. It is primarily utilized by industrial manufacturers and research institutions in the dyes and pigments, optical materials, and specialty chemical synthesis sectors.

Application

• Synthesis of Near-Infrared (NIR) Absorbing Dyes: A key precursor for creating cyanine and polymethine dyes used in optical data storage, laser applications, and security inks.
• Functional Dye Intermediate: Used in the production of sensitizing dyes for photographic films, digital printing, and electrophotography.
• Optical Material Research: Serves as a building block for novel organic semiconductors, non-linear optical (NLO) materials, and light-harvesting complexes in photovoltaics.
• Biomedical Imaging Probes: Potential intermediate for developing fluorescent markers and contrast agents used in bioimaging and diagnostic assays.
• Specialty Polymer Additives: Can be incorporated into polymers to impart specific light-filtering or energy-transfer properties.
• Analytical Chemistry Reagents: Used as a standard or a specialized reagent in chromatographic and spectroscopic method development.

Basic Information

Item	Detail
Product Name	1H-Benzimidazolium,5,6-Dichloro-2-[3-(5,6-Dichloro-1-Ethyl-1,3-Dihydro-3-Pentyl-2H-Benzimidazol-2-Ylidene)-1-Propenyl]-1-Ethyl-3-(4-Sulfobutyl)-, Inner Salt
CAS No.	95181-26-3
Molecular Formula	C31H40Cl4N4O3S
Molecular Weight	698.56 g/mol
Synonyms	5,6-Dichloro-2-[3-(5,6-dichloro-1-ethyl-3-pentyl-1,3-dihydro-2H-benzimidazol-2-ylidene)-1-propenyl]-1-ethyl-3-(4-sulfobutyl)-1H-benzimidazolium hydroxide, inner salt; IR-1061 (common trade name reference); Pentamethine cyanine dye intermediate; Benzimidazolium, inner salt derivative; NIR dye precursor; 1-Ethyl-2-[3-(1-ethyl-3-pentyl-1,3-dihydro-5,6-dichloro-2H-benzimidazol-2-ylidene)-1-propenyl]-5,6-dichloro-3-(4-sulfobutyl)-1H-benzimidazolium hydroxide, inner salt
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to reference spectrum
Purity (HPLC, Area %)	≥ 95.0%
Water Content (KF)	≤ 3.0%
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.