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Br-DAPI

CAS No. : 2387906-44-5

MCE 国际站：Br-DAPI

产品活性：Br-DAPI 是 DAPI 系列的标记染料。DAPI 是一种能够与 DNA 强力结合的荧光染料。DAPI 结合双链 DNA 小沟的 A/T 碱基对（1 个 DAPI 分子可以占据 3 个碱基对的位置），而显使荧光强度放大约 20 倍。通过观测荧光强度，可以对 DNA 定量。DAPI 还可以透过完整的细胞膜，常被用于活细胞和固定细胞的染色。储存方式：避光保存。

研究领域：Others  |  Cell Cycle/DNA Damage

作用靶点：Fluorescent Dye  |  DNA Stain

In Vitro: General Protocol
1. Preparation of DAPI working solution
1.1 Preparation of the stock solution
Dissolve 1 mg DAPI in 1 mL ddH₂O to obtain 1 mg/mL of stock solution.
Note: It is recommended to store the stock solution at -20°C or -80°C away from light and avoid repetitive freeze-thaw cycles.
1.2 Preparation of DAPI working solution
Dilute the stock solution in serum-free cell culture medium or PBS to obtain 1-10 ug/mL of working solution.
Note: Please adjust the concentration of DAPI working solution according to the actual situation.
2. Cell staining
2.1 Suspension cells（6-well plate）
a. 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.
b. Add 1 mL of working solution, and then incubate at room temperature for 3-10 minutes.
c. Centrifuge at 400 g at 4°C for 3-4 minutes and then discard the supernatant.
d. Wash twice with PBS, 5 minutes each time.
e. Resuspend cells with serum-free cell culture medium or PBS. Observation by fluorescence microscopy or flow cytometry.
2.2 Adherent cells
a. Culture adherent cells on sterile coverslips.
b. Remove the coverslip from the medium and aspirate excess medium.
c. Add 100 μL of working solution, gently shake it to completely cover the cells,and then incubate at room temperature for 3-10 minutes.
d. Wash twice with medium, 5 minutes each time.Observation by fluorescence microscopy or flow cytometry.

Storage
-20°C, 1 year. Protect from light

Precautions 1. Please adjust the concentration of DAPI working solution according to the actual situation.
2. This product is for R&D use only, not for drug, household, or other uses.
3. For your safety and health, please wear a lab coat and disposable gloves to operate.

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