iodoHoechst 33258 Chemical Properties

Boiling point:

752.5±70.0 °C(Predicted)

Density 

1.587±0.06 g/cm3(Predicted)

solubility 

25℃: DMSO or water Protect from light

form 

Powder

pka

10.66±0.10(Predicted)

color 

Off-white to pink

Appearance

Solid Powder

iodoHoechst 33258 Usage And Synthesis

Description

Meta-iodoHoechst 33258, an iodinated DNA-binding bibenzimidazole, is a cell dye for DNA quantitation which sensitizes DNA and cells to UVA.

Uses

meta-iodoHoechst 33258 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution[1].

References

[1] Portugal J, Waring MJ. Assignment of DNA binding sites for 4',6-diamidine-2-phenylindole and bisbenzimide (Hoechst 33258). A comparative footprinting study. Biochimica et Biophysica Acta 949 (2): 158-68. DOI:10.1016/0167-4781(88)90079-6
[2] Latt SA, Stetten G, Juergens LA, Recent developments in the detection of deoxyribonucleic acid synthesis by 33258 Hoechst fluorescence. The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 23 (7): 493-505. DOI:10.1177/23.7.1095650
[3] a b c "Hoechst Stains". Invitrogren (Molecular Probes).

iodoHoechst 33258(158013-42-4)Related Product Information

• Hoechst 33258