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D9542

Sigma-Aldrich

DAPI

for nucleic acid staining

Synonyma:

4′,6-Diamidino-2-phenylindole dihydrochloride, 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride, DAPI dihydrochloride

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About This Item

Empirický vzorec (Hillův zápis):
C16H15N5 · 2HCl
Číslo CAS:
28718-90-3
Molekulová hmotnost:
350.25
Beilstein/REAXYS Number:
4894417
EC Number:
249-186-7
MDL number:
MFCD00012681
UNSPSC Code:
12352200
PubChem Substance ID:
24894305
NACRES:
NA.52

grade

for molecular biology

Quality Level

300

assay

≥98% (HPLC)

form

powder

technique(s)

transfection: suitable

solubility

H2O: 20 mg/mL
PBS: insoluble

ε (extinction coefficient)

30 at 263 nm in H2O at 1 mM

fluorescence

λex 340 nm; λem 488 nm (nur DAPI)
λex 364 nm; λem 454 nm (DAPI-DNA-Komplex)

suitability

suitable for fluorescence

storage temp.

2-8°C

SMILES string

Cl.Cl.NC(=N)c1ccc(cc1)-c2cc3ccc(cc3[nH]2)C(N)=N

InChI

1S/C16H15N5.2ClH/c17-15(18)10-3-1-9(2-4-10)13-7-11-5-6-12(16(19)20)8-14(11)21-13;;/h1-8,21H,(H3,17,18)(H3,19,20);2*1H

InChI key

FPNZBYLXNYPRLR-UHFFFAOYSA-N

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General description

DAPI (4′,6-Diamidino-2-phenylindole dihydrochloride) is a cell permeable, fluorescent dye that binds to DNA.
heat or sonication may be required. Solutions stored in the dark at room temperature or 4 °C should be stable for 2 to 3 weeks.

Application

DAPI is several times more sensitive than ethidium bromide for staining DNA in agarose gels. It may be used for photofootprinting of DNA, to detect annealed probes in blotting applications by specifically visualizing the double-stranded complex, and to study the changes in DNA and analyze DNA content during apoptosis using flow cytometry. DAPI staining has also been shown to be a sensitive and specific detection method for mycoplasma.
Suitable for
  • DNA staining in agarose gels
  • analysis of changes in DNA during apoptosis
  • detection of mycoplasma
  • photofootprinting of DNA
  • immunofluorescent staining of cells

DAPI has been used:-
  • in rapid monitoring of microbial contamination
  • in chromosomal banding technique
  • in detection of apoptotic cells
  • in fluorescence microscopy to track the DisA (DNA integritiy scanning protein) movement on Bacillus subtilis DNA
  • to stain mature pollen grains(0.5 mg/ml)

Biochem/physiol Actions

Cell permeable fluorescent minor groove-binding probe for DNA. Binds to the minor groove of double-stranded DNA (preferentially to AT rich DNA), forming a stable complex which fluoresces approximately 20 times greater than DAPI alone.

Caution

Protect from light.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

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Stanovení ceny

08168

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pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Skin Irrit. 2 - Skin Sens. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Osvědčení o analýze (COA)

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Yan Li et al.
Toxicology letters, 154(3), 225-233 (2004-10-27)
Excessive exposure to synthetic and endogenous estrogens has been associated with the development of cancer in several tissues including the breast. 4-Hydroxyequilenin (4-OHEN), a major catechol metabolite of equine estrogens present in Premarin, an estrogen replacement formulation, has been shown
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Cell, 125(4), 679-690 (2006-05-23)
In response to DNA damage, cells activate checkpoint signaling cascades to control cell-cycle progression and elicit DNA repair in order to maintain genomic integrity. The sensing and repair of lesions is critical for Bacillus subtilis cells entering the developmental process
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The Journal of comparative neurology, 527(15), 2474-2487 (2019-03-13)
Corticotropin-releasing hormone (CRH) is an essential, evolutionarily-conserved stress neuropeptide. In addition to hypothalamus, CRH is expressed in brain regions including amygdala and hippocampus where it plays crucial roles in modulating the function of circuits underlying emotion and cognition. CRH+ fibers
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J Kapuscinski
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 70(5), 220-233 (1995-09-01)
DAPI (4',6-diamidino-2-phenylindole) is a DNA-specific probe which forms a fluorescent complex by attaching in the minor grove of A-T rich sequences of DNA. It also forms nonfluorescent intercalative complexes with double-stranded nucleic acids. The physicochemical properties of the dye and
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