Ensuring that weighing instruments are calibrated is essential for accurate measurements. This approach should be acceptable for preparing the desired concentrations.
Fortfahren mit
D9542
DAPI
for nucleic acid staining
Synonym(e):
4′,6-Diamidin-2-phenylindol -dihydrochlorid, 2-(4-Amidinophenyl)-6-indolcarbamidin -dihydrochlorid, DAPI -dihydrochlorid
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| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 mg | Warenkorb auf Verfügbarkeit prüfen | € 16,50 |
5 mg | Warenkorb auf Verfügbarkeit prüfen | € 69,40 |
10 mg | Warenkorb auf Verfügbarkeit prüfen | € 118,00 |
50 mg | Warenkorb auf Verfügbarkeit prüfen | € 456,00 |
Über diesen Artikel
Empirische Formel (Hill-System):
C16H15N5 · 2HCl
CAS-Nummer:
Molekulargewicht:
350.25
UNSPSC Code:
12352200
NACRES:
NA.52
PubChem Substance ID:
EC Number:
249-186-7
Beilstein/REAXYS Number:
4894417
MDL number:
Technischer Dienst
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Unterstützung erhaltengrade
Molecular Biology
Quality Segment
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-phenylindoldihydrochlorid) ist ein zelldurchdringender, fluoreszierender Farbstoff, der an DNA bindet.
Möglicherweise ist Wärme oder eine Ultraschallbehandlung erforderlich. Bei Lagerung bei Raumtemperatur oder bei 4 °C im Dunkeln sollten die Lösungen 2 bis 3 Wochen lang stabil sein.
Application
Geeignet für
DAPI wird verwendet:
- DNA-Färbung in Agarosegelen
- Analyse von DNA-Veränderungen während der Apoptose
- Nachweis von Mykoplasmen
- Photo-Footprinting von DNA
- Immunfluoreszenzfärbung von Zellen
DAPI wird verwendet:
- zur schnellen Überwachung von mikrobiologischen Kontaminationen
- bei der Chromosomenbänderungstechnik
- zum Nachweis von apoptotischen Zellen
- bei der Fluoreszenzmikroskopie zum Nachverfolgen der DisA (DNA-Integritäts-Scan-Protein)-Bewegung auf Bacillus subtilis-DNA
- zum Färben von ausgereiften Pollenkörnern (0,5 mg/ml)
DAPI ist um ein Vielfaches empfindlicher als Ethidiumbromid zur DNA-Färbung in Agarosegelen. Es kann für sogenanntes Photo-Footprinting von DNA verwendet werden, zum Nachweis gebundener Sonden in Blotting-Anwendungen durch gezielte Visualisierung des doppelsträngigen Komplexes, als auch um Änderungen in der DNA zu untersuchen und um den DNA-Gehalt während der Apoptose mittels Durchflusszytometrie zu bestimmen. DAPI-Färbung ist eine sensitive und spezifische Nachweismethode für Mykoplasmen.
DAPI ist um ein Vielfaches sensitiver als Ethidiumbromid für die Färbung von DNA in Agarosegelen.
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.
Disclaimer
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1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description for nucleic acid staining | description 4′,6-Diamidine-2′-phenylindole dihydrochloride | description Cell-permeable DNA-binding dye. | description powder, BioReagent, suitable for cell culture, ≥98% (HPLC), suitable for fluorescence |
| suitability suitable for fluorescence | suitability - | suitability - | suitability suitable for fluorescence |
| technique(s) transfection: suitable | technique(s) - | technique(s) - | technique(s) cell culture | mammalian: suitable |
| grade Molecular Biology | grade - | grade - | grade - |
| fluorescence λex 364 nm; λem 454 nm (DAPI-DNA-Komplex), λex 340 nm; λem 488 nm (nur DAPI) | fluorescence λex 340 nm; λem 488 nm (nur DAPI), λex 364 nm; λem 454 nm (DAPI-DNA-Komplex) | fluorescence λem ~461 nm, λex ~359 nm | fluorescence λex 364 nm; λem 454 nm (DAPI-DNA-Komplex), λex 340 nm; λem 488 nm (nur DAPI) |
| solubility PBS: insoluble, H2O: 20 mg/mL | solubility - | solubility water: 5 mg/mL, ethanol: soluble, methanol: soluble | solubility PBS: insoluble, H2O: 20 mg/mL |
| form powder | form powder | form solid | form powder |
Still not finding the right product?
Explore all of our products under DAPI
signalword
Warning
hcodes
Hazard Classifications
Skin Irrit. 2 - Skin Sens. 1A - STOT SE 3
target_organs
Respiratory system
Lagerklasse
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
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Can I dissolve 1mg in 50ul of H2O to adjust the concentration to 20mg/ml, then dilute it to 0.5ug/ml~5ug/ml and apply it to the cells?
1 answer-
Helpful?
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Can this product be used to stain bacteria (E.coli) chromosome?
1 answer-
DAPI is suitable for staining bacterial chromosomes, including those of E. coli.
Helpful?
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What is the working dilution of DAPI that should be used to stain the nuclei of human cells?
1 answer-
Typical working concentration of DAPI used in most applications is 0.1μg/mL-10μg/mL. Please see the link below to review the product datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/774/984/d9564pis.pdfPlease see the link below to review a sample protocol from Cold Spring Harbor:
https://cshprotocols.cshlp.org/content/2011/1/pdb.prot5556.longHelpful?
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what kind of the water used to dissolve DAPI? and what's the temperature should be dissolve the water?
1 answer-
This product is soluble at 20 mg/mL in water at ambient temperature. No specific water type or treatment is required. Deionized water is typically used for laboratory applications.
Please see the link below to review the product data sheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/392/209/d9542pis.pdfHelpful?
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What is the suggested concentration for product D9542-1MG?
1 answer-
The suggested concentration for product D9542-1MG, DAPI, is in the range of 0.5 to 5 ug/ml.
Helpful?
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Can the stain concentration be used for staining fish scales and any animal cells for ICC?
1 answer-
Yes, DAPI can be used to stain fish scale nuclei. While specific data regarding the concentration and duration for staining fish scale nuclei is not available, it is suggested to start with a working concentration of around 0.5 mg/ml and optimize the staining for each specific cell type, as different cells may uptake the dye at varying rates. It is also advisable to try staining at both higher and lower concentrations. For staining mammalian cells, lower concentrations are typically used.
Helpful?
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What is the suitable DAPI for immunofluorescence staining of free-floating rat brain sections?
1 answer-
Several DAPI products are suitable for staining free-floating rat brain sections. The same DAPI used for staining mycoplasma, cultured cells, or other cell types can be used for this purpose. Any of the DAPI products listed on the website should be suitable for this use.
Helpful?
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肝細胞を染める染色プロトコルを教えてください。
1 answer-
Please see the link below to review the product datasheet, which includes basic protocols:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/392/209/d9542pis.pdfA protocol specifically for hepatocyte staining is not available. However, the publication shown at the link below may be helpful:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5671579/Helpful?
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Aside from the applications described on the product page, how is D9542, 4´,6-Diamidino-2-phenylindole dihydrochloride (DAPI), used?
1 answer-
DAPI is used as a nuclear counterstain in our FISH protocol at 2 μg/mL in antifade mounting media. DAPI can also be used as a vital dye to stain mature pollen grains (0.5 μg/mL). DAPI can bind to RNA, but its selectivity for DNA over RNA is high. It appears that DAPI uses an intercalating binding mode with RNA that is AU selective (Biochem., 31, 3103 (1992)). Selectivity of DAPI for DNA over RNA is greater than that shown by ethidium bromide and propidium iodide (Nucleic Acid Research, 6, 3535 (1979))
Helpful?
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What is the stability of D9542, 4´,6-Diamidino-2-phenylindole dihydrochloride?
1 answer-
Product D9542, 4´,6-Diamidino-2-phenylindole dihydrochloride has a stability of 3 years as supplied. The product in solution is also stable in the dark at 4°C and showed no signs of degradation after three weeks at room temperature in the dark. Material exposed to light showed significant degradation. We have developed an HPLC method for our DAPI products that shows reassay results from July 2012 for lots that were originally released for sale in December 2008, for both D9542 (DAPI dihydrochloride) and D9564 (DAPI dilactate).
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