4',6-Diamidino-2-phenylindole dihydrochloride Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S22:Staub nicht einatmen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Beschreibung
DAPI is a fluorescent probe which is commonly used to stain DNA and chromosomes for fluorescent microscopy and flow cytometry applications. It forms a fluorescent complex by attaching in the minor groove of A-
T rich sequences of DNA. DAPI is often used as a counterstain, as its ultraviolet (max 358 nm) excitation and blue (max 461 nm) emission wavelengths separate it nicely from many popular primary fluorophores. It can be used on either fixed or live cells, although its low permeability in live cells demands that higher concentrations be used.
Chemische Eigenschaften
Yellow Solid
Verwenden
4',6-Diamidino-2-phenylindole dihydrochloride is used as a cell-permeable DNA-binding dye. Binds preferentially to DNA rich in adenine and thymine.It is used in flow cytometry for measuring nuclear DNA content or for sorting isolated chromosomes.
Allgemeine Beschreibung
DAPI, 4′,6-diamidino-2-phenylindole, is a blue fluorescent nucleic acid stain that fluoresces brightly upon selectively binding to the minor groove of double stranded DNA. Its selectivity for DNA and high cell permeability allows efficient staining of nuclei with little background from the cytoplasm. The excitation and emission wavelengths of DAPI-DNA complex are 360 nm and 460 nm, respectively.
Einzelnachweise
[1] W. C. RUSSELL D. H W CAROL NEWMAN. A simple cytochemical technique for demonstration of DNA in cells infected with mycoplasmas and viruses[J]. Nature, 1975, 253 5491: 461-462. DOI:
10.1038/253461a0.
[2] BETTY I. TARNOWSKI James H N F Spinale. DAPI as a useful stain for nuclear quantitation.[J]. Biotechnic & Histochemistry, 1991, 22 1: 297-302. DOI:
10.3109/10520299109109990.
[3] ANA KATRINA ESTANDARTE. The use of DAPI fluorescence lifetime imaging for investigating chromatin condensation in human chromosomes.[J]. Scientific Reports, 2016: 31417. DOI:
10.1038/srep31417.
4',6-Diamidino-2-phenylindole dihydrochloride Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
