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Sigma-Aldrich

4′,6-Diamidino-2-phenylindole dihydrochloride

BioReagent, suitable for fluorescence, ≥95.0% (HPLC)

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Synonym(s):
2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride, DAPI dihydrochloride
Empirical Formula (Hill Notation):
C16H15N5 · 2HCl
CAS Number:
Molecular Weight:
350.25
Beilstein/REAXYS Number:
4894417
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

product line

BioReagent

Quality Level

assay

≥95.0% (HPLC)

form

powder

solubility

DMF: soluble
H2O: soluble

fluorescence

λex 340 nm; λem 488 nm (nur DAPI)
λex 364 nm; λem 454 nm (DAPI-DNA-Komplex)
λex 374 nm; λem 461 nm in 10 mM Tris; 1 mM EDTA; pH 8.0; DNA

suitability

suitable for fluorescence

storage temp.

room temp

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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This Item
MBD0015D841710236276001
DAPI ready made solution For Nuclear counterstain in immunoflourecence microscopy, High Content Screening (HCS), Chromosome staining and flow cytometry (FACS)., 1 mg/mL

MBD0015

DAPI ready made solution

-
4′,6-Diamidino-2-phenylindole dihydrochloride powder, BioReagent, suitable for cell culture, ≥98% (HPLC and TLC), suitable for fluorescence

D8417

4′,6-Diamidino-2-phenylindole dihydrochloride

Essential+ Grade
DAPI 4′,6-Diamidine-2′-phenylindole dihydrochloride

10236276001

DAPI

-
fluorescence

λex 340 nm; λem 488 nm (nur DAPI), λex 374 nm; λem 461 nm in 10 mM Tris; 1 mM EDTA; pH 8.0; DNA, λex 364 nm; λem 454 nm (DAPI-DNA-Komplex)

fluorescence

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

fluorescence

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

fluorescence

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

solubility

DMF: soluble, H2O: soluble

solubility

water: soluble

solubility

H2O: 20 mg/mL (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.), PBS: insoluble

solubility

-

form

powder

form

liquid

form

powder

form

powder

storage temp.

room temp

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

room temp

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

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.

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.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark

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)


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