Description

Cy5.5 Di Et is a near-infrared (NIR) cyanine dye derivative, widely recognized by its CAS number 123791-69-5. This compound is a critical tool for advanced bioimaging and diagnostic applications due to its deep tissue penetration and low background fluorescence. It is essential for researchers and manufacturers in the fields of life sciences, medical diagnostics, and pharmaceutical development who require high-performance labeling reagents.

Application

• Fluorescent Labeling Agent: Used for labeling antibodies, peptides, proteins, and nucleic acids for in vitro and in vivo imaging.
• Bioimaging & Diagnostics: A key component in the development of NIR fluorescence-based imaging probes for deep-tissue cancer detection and surgical guidance.
• Molecular Probes: Employed in the synthesis of targeted molecular probes for biomarker detection and cellular imaging studies.
• Flow Cytometry & Microscopy: Serves as a fluorescent tag in flow cytometry and high-resolution confocal microscopy applications.
• Drug Delivery Research: Utilized to track and visualize drug carriers, liposomes, and nanoparticles in preclinical research.
• Optical Sensor Development: Integrated into the design of chemical sensors and biosensors for analyte detection.

Basic Information

Product Name	Cy5.5 Di Et
CAS No.	123791-69-5
Molecular Formula	C45H49N3O9S2+
Molecular Weight	840.01 g/mol
Synonyms	Cy5.5 Diethyl; Cy5.5 NHS Ester derivative; Sulfo-Cyanine5.5 Diethyl; 1,1'-(4,4,7,7-Tetramethyl-4,7-dihydro-5λ4-benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole)-5,5-diyl)bis(N,N-diethylpent-4-en-1-amine) derivative; NIR Dye Cy5.5; Cyanine5.5 Diethyl; CAS 123791-69-5
EINECS	Contact for details

Quality Control

Our Cy5.5 Di Et is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and spectroscopic methods for structural confirmation, to ensure it meets the high standards required for sensitive research and diagnostic applications. Certificates of Analysis (COA) with detailed specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability. For long-term storage, consider desiccation.

Specification

Item	Specification
Appearance	Dark green to blue solid
Identification (HPLC)	Conforms
Identification (UV-Vis)	λmax: ~683 nm, ~705 nm
Purity (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 1.0%
Solubility	Soluble in DMSO, DMF, methanol

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