Description

Cy3 (Diso3,Di Et) CAS NO 765265-69-8 is a specialized cyanine dye derivative, a crucial component in advanced fluorescence labeling and detection technologies. Its core value lies in providing high brightness and photostability for sensitive bioanalytical applications, enabling precise visualization and quantification in complex systems. This product is essential for research and development laboratories in the biotechnology, pharmaceutical, and diagnostic sectors, particularly for applications in flow cytometry, fluorescence microscopy, and nucleic acid detection.

Application

• Fluorescent Labeling of Biomolecules: Conjugation to antibodies, proteins, peptides, and oligonucleotides for detection assays.
• Flow Cytometry & Cell Analysis: Used as a vital stain or in antibody conjugates for cell sorting, immunophenotyping, and intracellular signaling studies.
• Fluorescence In Situ Hybridization (FISH): Labeling of nucleic acid probes for genetic analysis and cytogenetic testing.
• Microarray & Biochip Technology: Serving as a fluorescent reporter in genomic and proteomic screening platforms.
• Fluorescence Microscopy & Imaging: Enabling high-resolution visualization of cellular and subcellular structures and processes.
• Diagnostic Assay Development: Key component in the development of clinical diagnostic kits for various diseases.
• Polymer & Material Science: Incorporation into smart materials and sensors for photophysical studies.

Basic Information

Item	Detail
Product Name	Cy3 (Diso3,Di Et)
CAS No.	765265-69-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Cyanine3 (Diso3,Di Et); Cy3 Diso3 Di Et; Sulfo-Cy3; Sulfonated Cy3 dye; 1H-Benz[e]indolium, 2-[5-(1,3-dihydro-3,3-dimethyl-1-(sulfobutyl)-2H-benz[e]indol-2-ylidene)-1,3-pentadien-1-yl]-3,3-dimethyl-1-(sulfobutyl)-, inner salt; Fluorescent Cy3 derivative; Hydrophilic Cy3 dye
EINECS	Contact for details

Quality Control

Every batch of Cy3 (Diso3,Di Et) is manufactured under strict quality management protocols. Our products undergo rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure consistency and performance for critical research applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (or as indicated on the label). Due to its hygroscopic nature, the container must be kept tightly sealed in a desiccated environment to prevent moisture absorption, which can affect stability and performance.

Specification

Item	Specification
Appearance	Dark green to purple solid or powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Absorption (λmax)	~550 nm
Emission (λmax)	~570 nm
Extinction Coefficient	Contact for details
Moisture Content	≤ 5.0%
Solubility	Soluble in water, DMSO, methanol

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