Description

Benzoxazolium, 2-[2-[[5,6-Dimethoxy-3-(3- Sulfopropyl)-2(3H)-Benzothiazolylidene]Methyl]-1 -Butenyl]-5-Phenyl-3-(3-Sulfobutyl)-, Hydroxide, Inner Salt CAS NO 125301-98-6 is a specialized functional dye intermediate belonging to the cyanine dye family, characterized by its unique zwitterionic structure. This compound is critical for its high molar absorptivity and ability to act as a sensitizer or fluorescent probe in advanced optical applications. It is primarily sought by manufacturers in the imaging, diagnostics, and high-tech materials sectors for developing next-generation products.

Application

• Optical Data Storage: As a key photosensitizer component in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD±R).
• Biomedical Imaging & Diagnostics: Utilized in the synthesis of near-infrared (NIR) fluorescent dyes for bio-labeling, cell imaging, and in vivo diagnostic assays.
• Laser & Nonlinear Optics: Serves as an active medium in dye lasers and for the development of materials with nonlinear optical (NLO) properties.
• Photodynamic Therapy (PDT): Investigated as a precursor for photosensitizing agents used in targeted cancer treatments.
• Chemical Sensors: Employed in the fabrication of selective sensors for ions and biomolecules due to its chromogenic and fluorogenic response.
• Advanced Material Research: Used in academic and industrial R&D for creating novel photonic and electronic materials.

Basic Information

Product Name	Benzoxazolium, 2-[2-[[5,6-Dimethoxy-3-(3- Sulfopropyl)-2(3H)-Benzothiazolylidene]Methyl]-1 -Butenyl]-5-Phenyl-3-(3-Sulfobutyl)-, Hydroxide, Inner Salt
CAS No.	125301-98-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	2-[2-[[5,6-Dimethoxy-3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]methyl]-1-butenyl]-5-phenyl-3-(3-sulfobutyl)benzoxazolium hydroxide inner salt; Cyanine dye derivative; Benzothiazolium benzoxazolium dye; Optical recording dye intermediate; NIR dye precursor; Zwitterionic cyanine dye; Sensitizing dye for CD-R; CAS 125301-98-6
EINECS	Contact for details

Quality Control

Our production of this high-purity dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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 must be kept in a desiccated environment to maintain stability and prevent degradation. Ensure the storage area is well-ventilated.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 5.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Absorption Maxima (λmax)	Specified range provided per grade

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