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DAPI Dihydrochloride

Catalog No. T19827Cas No. 28718-90-3
Alias FxCycle Violet, 4',6-diamidino-2-phenylindole

DAPI Dihydrochloride (FxCycle Violet) is a cell-permeable fluorescent probe by binding in the minor grove of A-T rich sequences of DNA, used to stain DNA and chromosomes, with a preference for adenine and thymine rich DNA.

DAPI Dihydrochloride

DAPI Dihydrochloride

Purity: 99.94%
Catalog No. T19827Alias FxCycle Violet, 4',6-diamidino-2-phenylindoleCas No. 28718-90-3
DAPI Dihydrochloride (FxCycle Violet) is a cell-permeable fluorescent probe by binding in the minor grove of A-T rich sequences of DNA, used to stain DNA and chromosomes, with a preference for adenine and thymine rich DNA.
Pack SizePriceAvailabilityQuantity
5 mg$35In Stock
10 mg$62In Stock
25 mg$133In Stock
50 mg$213In Stock
100 mg$318In Stock
200 mg$473In Stock
1 mL x 10 mM (in DMSO)$39In Stock
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Purity:99.94%
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Product Introduction

Bioactivity
Description
DAPI Dihydrochloride (FxCycle Violet) is a cell-permeable fluorescent probe by binding in the minor grove of A-T rich sequences of DNA, used to stain DNA and chromosomes, with a preference for adenine and thymine rich DNA.
In vitro
DAPI dihydrochloride staining (adherent cells)

I. Preparation of working solution:

Dissolve 1 mg DAPI dihydrochloride in 1 mL ddH2O/DMSO to obtain a 1 mg/mL stock solution.

Use for adherent cells: For example, HeLa cells:

Material preparation:

PBS (phosphate buffered saline): used for cell washing and diluting DAPI dihydrochloride.

Fixative solution: 4% paraformaldehyde (PFA) or glacial acetic acid fixative is commonly used.

Sealants: For example, anti-fluorescence decay agents, help protect samples from light.

Fluorescence microscope: used to observe staining results.

II. Experimental steps

1. Cell fixation

Culturing cells:
Cultivate adherent cells on sterile coverslips (usually to 70-80% confluence).
Fixed cells:

1) Aspirate the culture medium in the culture dish and wash the cells 1-2 times with PBS to remove the residual culture medium.
2) Add 4% PFA fixative and fix the cells at room temperature for 10-30 minutes (depending on the cell type).
3) After fixation, wash the cells 3 times with PBS buffer for 5 minutes each time to remove excess fixative.

2. DAPI staining

Prepare DAPI working solution:
DAPI is diluted in ddH2O/DMSO, usually at a concentration of 1-10 µg/mL.

Staining:
Add DAPI working solution (100 μL) to the fixed cells for 10-30 minutes, which can be adjusted according to the cell type and experimental requirements.

3. Washing

Gently wash the cells 3 times with PBS buffer for 5 minutes each time to remove unbound DAPI dihydrochloride.

4. Sealing

Prepare the sample:
Add an appropriate amount of PBS or anti-fluorescence decay agent sealing solution and gently cover the coverslip.

Fixation:
Seal the edges of the coverslip with transparent tape or sealing agent to prevent drying.

5. Microscopic observation

Use a fluorescence microscope to observe the staining results at a specific wavelength. The cell nucleus will show bright blue fluorescence.

III. Precautions

1. Avoid light: DAPI dihydrochloride is light-sensitive and should be avoided from long-term exposure to light to prevent dye photodegradation.

2. Fixation time: The fixation time and conditions of different adherent cells may vary and need to be optimized according to the specific cell type.

3. Self-control: It is recommended to set up a negative control (unstained cells) to confirm the specificity and effectiveness of the staining.

4. Cell status: Ensure that the cells grow healthily before fixation to avoid dead cells affecting the staining results.

5. Please adjust the concentration of DAPI dihydrochloride working solution according to the actual situation.

6. This product is for scientific research only and is not for drug, home or other purposes.

7.For your safety and health, please wear a white coat and disposable gloves when operating.
AliasFxCycle Violet, 4',6-diamidino-2-phenylindole
Chemical Properties
Molecular Weight350.24
FormulaC16H17Cl2N5
Cas No.28718-90-3
Storage & Solubility Information
Storagekeep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice.
Solubility Information
H2O: 5 mg/mL (14.27 mM), Sonication is recommended.
DMSO: 100 mg/mL (285.51 mM)
Solution Preparation Table
H2O/DMSO
1mg5mg10mg50mg
1 mM2.8552 mL14.2759 mL28.5519 mL142.7593 mL
5 mM0.5710 mL2.8552 mL5.7104 mL28.5519 mL
10 mM0.2855 mL1.4276 mL2.8552 mL14.2759 mL
DMSO
1mg5mg10mg50mg
20 mM0.1428 mL0.7138 mL1.4276 mL7.1380 mL
50 mM0.0571 mL0.2855 mL0.5710 mL2.8552 mL
100 mM0.0286 mL0.1428 mL0.2855 mL1.4276 mL

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