Description

3-(2-([7-([3-(3-HYDROXY-3-OXOPROPYL)-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]METHYL)-4,4A,5,6-TETRAHYDRO-2(3H)-NAPHTHALENYLIDENE]METHYL)-1,3-BENZOTHIAZOL-3-IUM-3-YL)PROPANOATE is a sophisticated cyanine dye derivative, valued for its exceptional photophysical properties and structural versatility. This compound is engineered to serve as a high-performance functional dye and a critical intermediate in advanced material synthesis. It is essential for research and development teams in the biotechnology, photonics, and specialty chemical sectors seeking precision and reliability in their formulations.

Application

• Fluorescent Labeling Agent: Used as a near-infrared (NIR) or far-red fluorescent probe for bioimaging, cell staining, and flow cytometry applications.
• Optical Material Synthesis: A key intermediate in the production of advanced dyes for laser media, optical data storage, and nonlinear optical materials.
• Sensitizer for Photodynamic Therapy (PDT): Investigated for use in medical applications where light-activated compounds are required for targeted treatments.
• Chemical Sensor Development: Incorporated into sensor systems for the detection of specific ions, gases, or biomolecules due to its chromogenic and fluorogenic response.
• Photovoltaic Research: Employed in the development of dye-sensitized solar cells (DSSCs) and other organic photovoltaic devices.
• Analytical Chemistry Reagent: Serves as a standard or a tagging reagent in chromatographic and spectroscopic analysis methods.

Basic Information

Item	Details
Product Name	3-(2-([7-([3-(3-HYDROXY-3-OXOPROPYL)-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]METHYL)-4,4A,5,6-TETRAHYDRO-2(3H)-NAPHTHALENYLIDENE]METHYL)-1,3-BENZOTHIAZOL-3-IUM-3-YL)PROPANOATE
CAS No.	170153-80-7
Molecular Formula	C35H33N2O4S2+ • X-
Molecular Weight	609.78 g/mol (for cation)
Synonyms	Cy7 NHS ester derivative; Heptamethine cyanine dye carboxylic acid; 1,3-Benzothiazolium, 3-(2-carboxyethyl)-2-[7-[1,3-dihydro-3-(3-hydroxy-3-oxopropyl)-2H-benzothiazol-2-ylidene]-1,3,5-heptatrien-1-yl]-5,6-dihydro-1H-benzimidazol-3-ium-3-propanoate; NIR dye intermediate; Benzothiazolium cyanine dye; CAS 170153-80-7; Cyanine 7 analog
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye intermediates is produced and tested under a strict quality management system. We ensure compliance with relevant research and development grade standards. Comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, is performed to verify identity, purity, and consistency. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled temperature between 2°C and 8°C (refrigerated) for long-term stability. This product is hygroscopic (moisture-sensitive); ensure the container is sealed under an inert atmosphere or with desiccant after each use to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black solid
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Solubility	Soluble in DMSO, DMF; sparingly soluble in methanol

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