Description

Cy7 (Diso3, Di Et) CAS NO 186522-21-4 is a near-infrared (NIR) cyanine dye derivative, a crucial tool for advanced bioimaging and diagnostic applications. Its core value lies in its exceptional fluorescence properties in the NIR region, enabling deep-tissue penetration and minimal background interference for highly sensitive detection. This product is essential for researchers and manufacturers in the fields of biotechnology, pharmaceutical development, and in vitro diagnostics, where precise molecular labeling and tracking are required.

Application

• Fluorescent Labeling Agent: For conjugating to antibodies, peptides, or oligonucleotides to create NIR probes for bioassays.
• In Vivo Imaging: Used in preclinical research for non-invasive deep-tissue imaging in small animal models.
• Flow Cytometry & Microscopy: Serves as a bright NIR channel fluorophore for cell sorting and high-resolution cellular imaging.
• Diagnostic Kit Development: A key component in the formulation of lateral flow assays (LFAs) and other point-of-care diagnostic devices.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for targeted cancer treatments.
• Material Science: Incorporated into nanoparticles or polymers to create smart materials with optical reporting capabilities.

Basic Information

Product Name	Cy7 (Diso3, Di Et)
CAS No.	186522-21-4
Molecular Formula	C45H51N2O6S3+
Molecular Weight	812.10 g/mol
Synonyms	Cy7 Diso3 Di Et; Cy7-Diso3-Di-Et; 1,1'-(4,4,7,7-Tetramethyl-4,7-dihydro-1H-cyclopenta[b]quinoxaline-2,3-diyl)bis(3-ethyl-1,3-dihydro-2H-benzimidazole-2-thione) derivative; Sulfo-Cy7 Diethyl; NIR Cyanine 7 dye derivative; Heptamethine cyanine dye; IR-786 analog; Bioimaging dye 186522-21-4
EINECS	Contact for details

Quality Control

Our Cy7 (Diso3, Di Et) is produced under strict quality management protocols to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including HPLC for purity verification, mass spectrometry for identity confirmation, and spectrophotometry for optical property validation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your research and quality assurance requirements.

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 light-sensitive; ensure the container is sealed under an inert atmosphere after each use to maintain stability and prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black solid
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Absorption Maximum (λmax)	750 - 760 nm
Emission Maximum (λem)	770 - 780 nm
Extinction Coefficient (ε)	≥ 200,000 L·mol⁻¹·cm⁻¹

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