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编 号:F248521
分子式:C40H40Cl2N2O4
分子量:683.66
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生物活性:
IR 813 perchlorate is a near-infrared (NIR) fluorescent dye (Ex=815 nm, Em=840 nm) and can be used for visualizing regional lymph nodes in mice.

体内研究:
IR 813 perchlorate displays a maximum fluorescence intensity at 4 h postinjection together with a rapid extravasation, when being used for visualizing regional lymph nodes in mice.Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs). 1. Animal: Ten-week-old female Balb/cOlaAnN mice are kept in a 12 h light/dark cycle to reduce tissue autofluorescence in the NIR region, and had access to food and water ad libitum.2. Dose: A single dose 5.1 nmol of IR 813 dye (20 μL of 0.173 mg/mL, dissolved in a PEG-400/ethanol/water=3:2:5, v/v/v solution) is subcutaneous injected in the right anterior paw of mice.3. Imaging: Using the Fluobeam700 NIR imaging system to perform in vivo optical imaging (739 nm excitation light (3.5 mW), 750 nm long-pass emission cutoff filter).Fluorescence intensity in the axillary lymph node (ALN) is recorded for 1 week (5 min, 1 h, 4 h, 24 h, 7 days).4. Data analysis: Semiquantitative data is obtained from the fluorescence images using ImageJ 1.44 software.

体外研究:
IR 813 (17.3 μM, 2 h) induces a 31.4% hemolysis in red blood cells.IR 813 (5.9 μM, 24 h) induces 50% cell death in MRC-5 cells.
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