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D9542

DAPI

for nucleic acid staining

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C16H15N5 · 2HCl
CAS Number:
28718-90-3
Molecular Weight:
350.25
UNSPSC Code:
12352200
NACRES:
NA.52
PubChem Substance ID:
24894305
EC Number:
249-186-7
Beilstein/REAXYS Number:
4894417
MDL number:
MFCD00012681
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grade

Molecular Biology

Quality Segment

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

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.
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.

Other Notes

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

Disclaimer

Protect from light.

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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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

D9542-10MG: + D9542-50MG: + D9542-50MG-PW: + D9542-RSAMPLE: + D9542-1MG: + D9542-5MG-PW: + D9542-1MG-PW: + D9542-10MG-PW: + D9542-5MG: + D9542-VAR: + D9542-BULK:

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