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Chemical Structure| 28718-90-3 Chemical Structure| 28718-90-3

Structure of DAPI 2HCl
CAS No.: 28718-90-3

Chemical Structure| 28718-90-3

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DAPI 2HCl is a DAPI dye. DAPI is a blue fluorescent dye that binds strongly to DNA.

Synonyms: 4',6-Diamidino-2-phenylindole dihydrochloride; FxCycle Violet; 4',6-Diamidino-2-phenylindole

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Product Details of DAPI 2HCl

CAS No. :28718-90-3
Formula : C16H17Cl2N5
M.W : 350.25
SMILES Code : N=C(C1=CC2=C(C=C1)C=C(C3=CC=C(C(N)=N)C=C3)N2)N.[H]Cl.[H]Cl
Synonyms :
4',6-Diamidino-2-phenylindole dihydrochloride; FxCycle Violet; 4',6-Diamidino-2-phenylindole
MDL No. :MFCD00012681
InChI Key :FPNZBYLXNYPRLR-UHFFFAOYSA-N
Pubchem ID :160166

Safety of DAPI 2HCl

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Isoform Comparison

Biological Activity

Description
DAPI dihydrochloride, a variant of DAPI dye, exhibits strong affinity for DNA, specifically binding to the AT base pairs within the minor groove of double-stranded DNA, where a single DAPI molecule occupies three base pair positions. This binding significantly amplifies DAPI's fluorescence intensity, enabling its use in live and fixed cell staining observable via fluorescence microscopy. The fluorescent intensity is leveraged to quantify DNA, with DAPI's ability to penetrate intact cell membranes facilitating comprehensive cellular staining[1].

In Vitro:

Cell Line
Concentration Treated Time Description References
Pict1 ES cells 5 ng ml−1 1, 2 or 3 days To detect cell cycle changes, results showed that Pict1 loss led to G1 phase arrest PMC4578312
Pict1 ES cells 5 ng ml−1 2, 3 or 4 days To detect apoptosis, results showed that Pict1 loss led to increased apoptosis PMC4578312
HeLa cells 1 µM 2 hours Measure the rate of DAPI uptake, showing that HeLa cells expressing mCx30.2 took up DAPI more than 10-fold faster than parental cells PMC1480474
HeLaCx30.2-EGFP cells 1 µM 1 hour Under Ca-free conditions, the rate of DAPI uptake increased 2-fold, while uptake by parental cells was not affected PMC1480474
cardiomyocytes 2 µM 4 hours Measure the rate of DAPI uptake, showing that cardiomyocytes expressing hCx31.9-EGFP took up DAPI 5–10 times faster than wild-type cardiomyocytes PMC1480474
HeLa cells 1 μM 2 hours Evaluate the effect of mefloquine on dye uptake through hCx31.9 hemichannels, results showed mefloquine reduced DAPI and EtdBr uptake PMC1480474
HeLa cells 1 μM 2 hours Evaluate the effect of mefloquine on dye uptake through mCx30.2 hemichannels, results showed mefloquine reduced DAPI and EtdBr uptake PMC1480474

In Vivo:

Species
Animal Model
Administration Dosage Frequency Description References
mice Pict1+/− mice topical application 5 mg/kg/day (intraperitoneal), 3.5 mg/mouse/day (oral) once daily for 7 days (before infection), continued during infection To induce skin tumors, results showed that Pict1+/? mice were more resistant to chemically induced skin tumors PMC4578312

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

2.86mL

0.57mL

0.29mL

14.28mL

2.86mL

1.43mL

28.55mL

5.71mL

2.86mL

Dissolving Methods
Please choose the appropriate dissolution scheme according to your animal administration guide.For the following dissolution schemes, clear stock solution should be prepared according to in vitro experiments, and then cosolvent should be added in turn:

in order to ensure the reliability of the experimental results, the clarified stock solution can be properly preserved according to the storage conditions; The working fluid for in vivo experiment is recommended to be prepared now and used on the same day;

The percentage shown in front of the following solvent refers to the volume ratio of the solvent in the final solution; If precipitation or precipitation occurs in the preparation process, it can be assisted by heating and/or ultrasound.
Protocol 1
Protocol 2

References

 

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