DiR (solution) 

DiR (solution) is a long-chain carbocyanine dye. Carbocyanine dyes are widely used as Di to label cells, organelles, liposomes, viruses and lipoproteins^[2].
Solvent and concentration: DMSO: 5 mM

Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
1. Preparing Stain Solutions of DiR
Prepare working solutions: Dilute the stock solutions into a suitable buffer such as serum-free culture medium, HBSS or PBS to make 1 to 5 μM working solutions. We do not recommend storing the aqueous solution for more than one day.
2. Cell staining (Suspension cells)
2.1 Centrifuge at 1000 g at 4°C for 3-5 minutes and then discard the supernatant. Wash twice with PBS, 5 minutes each time. The cell density is 1×10⁶/mL.
2.2 Add 1 mL of DiR working solution, and then incubate at room temperature for 5-30 minutes.
2.3 Centrifuge at 400 g at 4°C for 3-4 minutes and then discard the supernatant.
2.4 Wash twice with PBS, 5 minutes each time.
2.5 Resuspend cells with serum-free cell culture medium or PBS. Observation by fluorescence microscopy or flow cytometry.
3. Cell staining (Adherent cells)
3.1 Culture adherent cells on sterile coverslips.
3.2 Remove the coverslip from the medium and aspirate excess medium.
3.3 Add 100 μL of working solution, gently shake it to completely cover the cells, and then incubate at room temperature for 5-30 minutes.
3.4 Wash twice with medium, 5 minutes each time. Observation by fluorescence microscopy or flow cytometry.

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

1013.42

C₆₃H₁₀₁IN₂

100068-60-8

Liquid

Blue to blue-green

CCCCCCCCCCCCCCCCCC[N+]1=C(/C=C/C=C/C=C/C=C2N(CCCCCCCCCCCCCCCCCC)C3=C(C=CC=C3)C/2(C)C)C(C)(C)C4=C1C=CC=C4.[I-]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Gan WB, et al. Multicolor "DiOlistic" labeling of the nervous system using lipophilic dye combinations. Neuron. 2000 Aug;27(2):219-25.  [Content Brief]

  [2]. Swift MJ, et al. Applied electric fields accelerate the diffusion rate and increase the diffusion distance of DiI in fixed tissue. J Neurosci Methods. 2005 Jan 30;141(1):155-63.  [Content Brief]