Description

2-[2-[(3-Ethyl-5-Methoxybenzothiazol-2(3H)-Ylidene)Methyl]But-1-Enyl]-5-Methoxy-3-(3-Sulphonatopropyl)Benzothiazolium is a high-purity, water-soluble benzothiazolium dye intermediate. This compound is valued for its role as a key precursor in the synthesis of specialized cyanine dyes, which are essential for their strong light absorption and fluorescence properties. It is primarily required by manufacturers in the biotechnology, diagnostic imaging, and advanced material science sectors for developing sensitive detection reagents and functional colorants.

Application

• Fluorescent Dye Synthesis: A critical building block for producing near-infrared (NIR) and infrared (IR) cyanine dyes used in bioimaging and flow cytometry.
• Diagnostic Reagents: Used in the formulation of labeling agents for immunoassays, DNA sequencing, and fluorescence in situ hybridization (FISH).
• Photographic Sensitizers: Serves as a spectral sensitizer in the manufacturing of specialized photographic emulsions and films.
• Optical Data Storage: A component in the development of materials for optical recording media and laser dyes.
• Non-Linear Optical Materials: Used in research and production of materials for photonics and optoelectronic devices.
• Sensor Technology: Employed in the creation of chemical sensors and probes for environmental or biological monitoring.

Basic Information

Product Name	2-[2-[(3-Ethyl-5-Methoxybenzothiazol-2(3H)-Ylidene)Methyl]But-1-Enyl]-5-Methoxy-3-(3-Sulphonatopropyl)Benzothiazolium
CAS No.	14637-08-2
Molecular Formula	C27H31N2O6S3+
Molecular Weight	575.73 g/mol
Synonyms	5-Methoxy-2-[2-[(3-ethyl-5-methoxy-2(3H)-benzothiazolylidene)methyl]-1-butenyl]-3-(3-sulfopropyl)benzothiazolium; Benzothiazolium, 2-[2-[(3-ethyl-5-methoxy-2(3H)-benzothiazolylidene)methyl]-1-butenyl]-5-methoxy-3-(3-sulfopropyl)-, inner salt; Cyanine dye intermediate; Sulfoindocyanine dye precursor; NIR dye building block; Water-soluble benzothiazole dye salt
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through comprehensive analytical methods including HPLC, NMR, and mass spectrometry. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming identity, purity, and conformity to agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Solubility (Water)	Freely soluble

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