FD-1080 free acid 

FD-1080 free acid is a fluorophore with both excitation and emission in the NIR-II region (Ex=1064 nm, Em=1080 nm). FD-1080 free acid can be used for in vivo imaging^[1].

FD-1080 shows superior photostability under the continuous laser irradiation. The quantum yield of FD-1080 is 0.31%, and can be increased to 5.94% after combining with fetal bovine serum (FBS) to form FD-1080-FBS complexes^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

The 1064 nm NIR-II excitation of FD-1080 is demonstrated with the high tissue penetration depth and superior imaging resolution compared to NIR excitation from 650 nm to 980 nm. Deeptissue and high-resolution in vivo imaging for the left hindlimb vasculature, abdomen, and brain vessels was realized, allowing penetration through intact skin, tissue, and skull. FD-1080 also quantifying the respiratory rate based on the dynamic imaging of respiratory craniocaudal motion of the liver for the awake and anaesthetized mouse^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

743.33

C₄₀H₃₉ClN₂O₆S₂

1151888-25-3

Solid

Brown to black

O=S(CCCC[N+]1=C(/C=C/C2=C(Cl)/C(CCC2)=C/C=C3N(CCCCS(=O)(O)=O)C4=C5C\3=CC=CC5=CC=C4)C6=CC=CC7=C6C1=CC=C7)([O-])=O

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

• [1]. Benhao Li, et al. An Efficient 1064 nm NIR-II Excitation Fluorescent Molecular Dye for Deep-Tissue High-Resolution Dynamic Bioimaging. Angew Chem Int Ed Engl. 2018 Jun 18;57(25):7483-7487.  [Content Brief]