Description

Cy7.5 Di Et CAS NO 103090-94-4 is a near-infrared (NIR) fluorescent dye belonging to the cyanine dye family, specifically functionalized with diethyl groups. This compound matters for its exceptional photostability and deep tissue penetration capabilities, making it a critical tool for advanced bioimaging and diagnostic applications. It is primarily needed by researchers and manufacturers in the biotechnology, pharmaceutical, and medical diagnostics sectors for applications such as in vivo imaging, flow cytometry, and the development of fluorescent probes and sensors.

Application

• In Vivo Imaging Agent: Used as a fluorescent tag for non-invasive deep-tissue imaging in preclinical animal studies due to its near-infrared emission, which minimizes background autofluorescence.
• Flow Cytometry & Cell Sorting: Serves as a labeling dye for antibodies, proteins, or nanoparticles to detect and isolate specific cell populations.
• Fluorescent Probe Development: A key building block for synthesizing targeted molecular probes for biomarker detection and cellular process monitoring.
• Biosensor Conjugation: Conjugated to biomolecules to create sensitive diagnostic assays and biosensors for research and clinical testing.
• Material Science Research: Incorporated into polymers or nanoparticles to study material properties, drug delivery pathways, and biodistribution.
• Optical Device Testing: Utilized as a standard or active component in calibrating and testing NIR-sensitive optical instruments and detectors.

Basic Information

Product Name	Cy7.5 Di Et
CAS No.	103090-94-4
Molecular Formula	C45H51N2O12S43+ • 3X-
Molecular Weight	Contact for details
Synonyms	Cy7.5 Diethyl; Cyanine7.5 Diethyl; 1H-Benz[e]indolium, 2-[7-[1,3-dihydro-3,3-dimethyl-1-(4-sulfobutyl)-2H-benz[e]indol-2-ylidene]-1,3,5-heptatrienyl]-3,3-dimethyl-1-(4-sulfobutyl)-, inner salt, diethyl derivative; Sulfo-Cy7.5 Diethyl; NIR-797 Diethyl derivative; Heptamethine cyanine dye Cy7.5 Di Et
EINECS	Contact for details

Quality Control

Our Cy7.5 Di Et is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and MS for structural confirmation, and spectrophotometry to verify optical properties. We ensure compliance with relevant research-grade standards, and a comprehensive Certificate of Analysis (COA) detailing identity, purity, and performance specifications is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a freezer at -20°C or below, under desiccant, due to its hygroscopic (moisture-sensitive) nature. Allow the sealed container to equilibrate to room temperature before opening to prevent condensation and moisture uptake.

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%
Absorption Maximum (λmax)	~790 - 810 nm
Emission Maximum (λem)	~810 - 830 nm
Extinction Coefficient (ε)	≥ 200,000 M-1cm-1
Moisture Content (KF)	≤ 5.0%

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