Description

2-(3-(5-CHLORO-1-SULFO PROPYL-3-ETHYL-6-TRIFLUOROMETHYL-2-BENZIMIDAZOLINYLIDENE) PROPENYL)-5-CHLORO-3-ETHYL-1-SULFOPROPYL-6-TRIFLUOROMETHYL BENZIMIDAZOLIUM HYDROXIDE, INNER SALT, SODIUM SALT is a high-purity, functionalized benzimidazolium dye intermediate. This compound is valued for its role as a key precursor in synthesizing specialized near-infrared (NIR) absorbing dyes and functional pigments. It is primarily sought by manufacturers in the optical data storage, security printing, and advanced imaging sectors, where precise chromophore performance is critical.

Application

• Optical Data Storage Media: A critical precursor for dyes used in recordable CD-R and DVD-R discs.
• Security Inks and Pigments: Synthesis of covert markers and anti-counterfeiting features for banknotes, documents, and high-value goods.
• Laser Absorption and Filtering: Manufacturing of materials designed for specific laser wavelength absorption in optical filters and sensors.
• Non-Linear Optical (NLO) Materials: Research and development of advanced materials for photonics and optoelectronic devices.
• Functional Textile Dyes: Development of specialized dyes with enhanced light-fastness and unique spectral properties.
• Biomedical Imaging Probes: Intermediate for creating NIR fluorescent tags and contrast agents used in diagnostic imaging.

Basic Information

Item	Detail
Product Name	2-(3-(5-CHLORO-1-SULFO PROPYL-3-ETHYL-6-TRIFLUOROMETHYL-2-BENZIMIDAZOLINYLIDENE) PROPENYL)-5-CHLORO-3-ETHYL-1-SULFOPROPYL-6-TRIFLUOROMETHYL BENZIMIDAZOLIUM HYDROXIDE, INNER SALT, SODIUM SALT
CAS No.	33628-07-8
Molecular Formula	C31H33Cl2F6N4O6S2Na
Molecular Weight	821.62 g/mol
Synonyms	NK-2016; NK 2016; Benzimidazolium, 2-[3-[5-chloro-3-ethyl-1-sulfopropyl-6-(trifluoromethyl)-1H-benzimidazol-2-ylidene]-1-propenyl]-5-chloro-3-ethyl-1-sulfopropyl-6-(trifluoromethyl)-, hydroxide, inner salt, sodium salt; C.I. Solvent Black 45; 1H-Benzimidazolium, 2-[2-[5-chloro-3-ethyl-1-(3-sulfopropyl)-6-(trifluoromethyl)-1H-benzimidazol-2-ylidene]ethenyl]-5-chloro-3-ethyl-1-(3-sulfopropyl)-6-(trifluoromethyl)-, hydroxide, inner salt, sodium salt; Naphthalocyanine dye intermediate; NIR Dye Intermediate 33628-07-8
EINECS	Contact for details

Quality Control

Every batch of this advanced intermediate is produced under strict quality management systems to ensure consistency and purity for sensitive synthesis processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as identity, assay, and impurity profiles. Our production adheres to relevant ISO 9001 standards, and we support customer audits to ensure supply chain integrity for critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in DMF)	Complete, clear solution

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