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Merck

32670

4′,6-Diamidino-2-phénylindole dihydrochloride

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

Synonyme(s) :

2-(4-Amidinophényl)-6-indolecarbamidine dihydrochloride, DAPI dihydrochloride

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About This Item

Formule empirique (notation de Hill) :
C16H15N5 · 2HCl
Numéro CAS:
Poids moléculaire :
350.25
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
EC Number:
249-186-7
Beilstein/REAXYS Number:
4894417
MDL number:

Nom du produit

4′,6-Diamidino-2-phénylindole dihydrochloride, suitable for fluorescence, BioReagent, ≥95.0% (HPLC)

InChI key

FPNZBYLXNYPRLR-UHFFFAOYSA-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

SMILES string

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

product line

BioReagent

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

Quality Level

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Application

Le DAPI est nettement plus sensible que le bromure d′éthidium pour marquer l′ADN dans les gels d′agarose.
Le DAPI est nettement plus sensible que le bromure d′éthidium pour marquer l′ADN dans les gels d′agarose. Il peut être utilisé dans le photofootprinting de l′ADN, pour détecter les sondes hybridées dans les applications sur membranes en permettant la visualisation spécifique des complexes double-brins, et pour évaluer les changements de l′ADN et de son contenu lors de l′apoptose par cytométrie en flux. La coloration par DAPI est également une méthode sensible et spécifique de détection des mycoplasmes.

Biochem/physiol Actions

Sonde fluorescente pour l′ADN qui se lie dans le petit sillon, capable de pénétrer dans les cellules. Se lie au petit sillon d′ADN double brin (préférentiellement à l′ADN riche en AT), formant un complexe stable dont l′intensité de fluorescence est environ 20 fois plus élevée que celle du DAPI non lié.

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

Classe de stockage

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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Certificats d'analyse (COA)

Lot/Batch Number

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How can I make a solution of 4´,6-Diamidino-2-phenylindole dihydrochloride (DAPI), Product 32670?

    DAPI is soluble in water (10 mg/mL) with heat or sonication as necessary. It is insoluble in PBS even at 1 mg/ml.

  4. How can I store solutions of 4´,6-Diamidino-2-phenylindole dihydrochloride (DAPI), Product 32670?

    At 1 mg/mL, the solutions are stable in the dark at 2-8 °C for several weeks. For long-term storage, the solutions can be divided into aliquots and stored frozen at -20°C

  5. What concentration of 4´,6-Diamidino-2-phenylindole dihydrochloride (DAPI), Product 32670, is used to as a nuclear counterstain for tissue sections?

    Following fluorescent staining of the cells, DAPI is added to the mounting media at 2 μg/ml.

  6. What concentration of 4´,6-Diamidino-2-phenylindole dihydrochloride (DAPI), Product 32670, is used to as a nuclear stain for cultured cells?

    Use DAPI at 0.1 microgram per mL in phosphate buffered saline (PBS) to incubate with monolayer cultured cells for 15-30 minutes at 30°C.  Immediately examine with a fluorescence microscope.

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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