Description

3,3'-Bis(3-Sulfopropyl)-4,5:4',5'-Dibenzo-9-Ethylthiacarbocyanine Betaine Triethylammonium Salt is a high-purity, water-soluble cyanine dye derivative. This compound matters for its exceptional performance as a near-infrared (NIR) fluorescent probe, offering high quantum yield and photostability. It is primarily needed by researchers and manufacturers in the life sciences, diagnostics, and material science sectors for applications such as bioimaging, flow cytometry, and the development of optical sensors.

Application

• Bioimaging and Fluorescence Microscopy: Used as a NIR fluorescent label for cellular and tissue imaging due to its deep tissue penetration and minimal autofluorescence.
• Flow Cytometry: Serves as a vital dye for detecting and sorting specific cell populations in clinical and research settings.
• Optical Sensor Development: Incorporated into sensor matrices for detecting ions, gases, or biomolecules based on fluorescence quenching or enhancement.
• Protein and Nucleic Acid Labeling: Conjugated to antibodies, streptavidin, or oligonucleotides for highly sensitive detection assays (e.g., ELISA, FISH).
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for targeted cancer treatments.
• Non-Linear Optics and Laser Dyes: Utilized in research for its lasing properties and potential in photonic devices.
• Ink and Dye Formulations: Employed in specialized industrial applications requiring NIR-absorbing or fluorescent properties.

Basic Information

Product Name	3,3'-Bis(3-Sulfopropyl)-4,5:4',5'-Dibenzo-9-Ethylthiacarbocyanine Betaine Triethylammonium Salt
CAS No.	23216-67-3
Molecular Formula	C₄₅H₅₇N₃O₆S₃
Molecular Weight	824.15 g/mol
Synonyms	SP-3; Cy7-SE; Sulfo-Cyanine7 NHS ester (related precursor); 9-Ethyl-3,3'-bis(3-sulfopropyl)-4,5,4',5'-dibenzothiacarbocyanine betaine triethylammonium salt; Thiacarbocyanine dye, sulfo-Cy7 derivative; NIR-797 (similar class); Benzothiazolium, 2-[5-[1,3-dihydro-3,3-dimethyl-1-(3-sulfopropyl)-2H-indol-2-ylidene]-1,3-pentadien-1-yl]-3-ethyl-, hydroxide, inner salt, triethylamine salt (alternative representation); IR-1061 (structural analog).
EINECS	Contact for details

Quality Control

Our 3,3'-Bis(3-Sulfopropyl)-4,5:4',5'-Dibenzo-9-Ethylthiacarbocyanine Betaine Triethylammonium Salt is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, spectroscopy for identity confirmation (NMR, MS), and functional performance validation. Certificates of Analysis (COA) detailing lot-specific results are available upon request to ensure traceability and compliance with your research or manufacturing standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as indicated on the label. This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to ambient conditions, moisture, or light may affect performance. Keep container tightly sealed under an inert atmosphere if specified for long-term storage.

Specification

Item	Specification
Appearance	Dark green to blue-black solid
Identification (UV-Vis)	Conforms
Identification (MS)	Conforms
Purity (HPLC)	≥ 95.0%
Extinction Coefficient	≥ 200,000 cm⁻¹M⁻¹ (at λmax)
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm
Fluorescence Properties	Reported (λex/λem, Quantum Yield)

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