Description

3,3'-Disulfopropyl-5,6,5',6'-Dibenz-9-Ethyloxacarbocyanine Triethylammonium Salt is a high-purity, water-soluble cyanine dye derivative with significant utility in advanced analytical and diagnostic applications. Its core value lies in its strong near-infrared (NIR) fluorescence and excellent photostability, making it an ideal candidate for sensitive detection and labeling. This compound is primarily needed by research institutions, diagnostic kit manufacturers, and biotechnology companies engaged in nucleic acid detection, fluorescence microscopy, and flow cytometry.

Application

• Fluorescent Labeling Agent: Used as a covalent or non-covalent label for proteins, antibodies, and nucleic acids (DNA/RNA) in bioassays.
• Nucleic Acid Staining: Employed in gel electrophoresis (e.g., agarose, PAGE) for the visualization and quantification of DNA fragments.
• Flow Cytometry & Cell Sorting: Serves as a vital fluorescent probe for cell surface marker staining and intracellular component analysis.
• Fluorescence Microscopy & Imaging: Applied in live-cell imaging and immunohistochemistry due to its bright and stable emission in the NIR region.
• Diagnostic Assay Development: A key component in the formulation of lateral flow assays (LFAs), ELISA, and other point-of-care diagnostic tests.
• Sensor & Probe Fabrication: Incorporated into the design of chemical sensors and biosensors for environmental monitoring or clinical diagnostics.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in preclinical studies for targeted cancer therapies.
• Material Science: Used in the development of fluorescent nanomaterials and optoelectronic devices.

Basic Information

Product Name	3,3'-Disulfopropyl-5,6,5',6'-Dibenz-9-Ethyloxacarbocyanine Triethylammonium Salt
CAS No.	92771-39-6
Molecular Formula	C45H53N3O6S2
Molecular Weight	804.04 g/mol
Synonyms	9-Ethyl-3,3'-disulfopropyl-5,6,5',6'-dibenzooxacarbocyanine triethylammonium salt; Cy5.5 analogue; NIR dye Cy5.5 type; Sulfo-Cyanine5.5; Benzoxacarbocyanine dye; Water-soluble cyanine dye; Fluorescent probe 92771-39-6; 3,3'-DSOCC
EINECS	Contact for details

Quality Control

Our production of 3,3'-Disulfopropyl-5,6,5',6'-Dibenz-9-Ethyloxacarbocyanine Triethylammonium Salt adheres to stringent quality management protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for molar absorptivity verification, and functional testing in relevant assay formats. Certificates of Analysis (COA) detailing identity, purity, and performance specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry, cool place. This compound is hygroscopic (moisture-sensitive) and light-sensitive. For long-term stability, consider storing under desiccant or in an inert atmosphere. Allow the sealed vial to equilibrate to room temperature before opening to prevent condensation.

Specification

Item	Specification
Appearance	Dark green to blue-black solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
λAbsorption Max	680 - 690 nm
λEmission Max	705 - 715 nm
Extinction Coefficient (ε)	> 180,000 M-1cm-1
Water Content (KF)	≤ 5.0 %
Solubility	Freely soluble in water, DMSO, DMF

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