Molecule

B2883 

Biochem/physiol Actions
膜渗透性 DNA 荧光染色剂，具有低细胞毒性，可插入 DNA 的 A-T 区。
Application
用于 DNA、染色体及细胞核的染色。可用于荧光显微术或流式细胞术。 最大激发波长 = 346nm 最大发射波长 = 460nm

B1155 

Biochem/physiol Actions
膜渗透性 DNA 荧光染色剂，具有低细胞毒性，可插入 DNA 的 A-T 区。
Application
用于 DNA、染色体及细胞核的染色。可用于荧光显微术或流式细胞术。 最大激发波长 = 346nm 最大发射波长 = 460nm

H6024 

Components
Contains 0.5μg/ml Hoechst bisbenzimide 33258 fluorochrome stain and thimerosal.
Application
A fluorescent DNA stain qualified for use in Mycoplama staining.

14530 

Biochem/physiol Actions
Membrane-permeable, fluorescent DNA stain with low cytotoxicity that intercalate in A-T regions of DNA.
Other Notes
Useful reagent for cytogenetic studies; for the fluorescent staining of DNA in cells12; simple two-step fluorimetric assay of DNA in isolated nuclei, cell extracts, or crude homogenates using Hoechst 3325813
Application
A bibenzimidazole dye that has been utilized as a fluorescent stain. It is membrane-permeable and selectively binds to adenine-thymine regions in the minor groove of B-form DNA 1,2 with a high binding constant, making it a useful stain for DNA, chromosomes, and nuclei 3,4. It has been shown that the fluorescence is relatively insensitive to the presence of various solution reagents (i.e., BSA, RNA, Tris, sucrose, TEA/EDTA, Triton X-100, and SDS)5. Furthermore, the solution ionic strength and pH has been shown to be independent of the Stokes’ shift of bisBenzimide H 33258 3. The properties of this dye make it useful in several applications such as detecting mycoplasma contamination in tissue culture 6,7, indicating early onset of apoptosis8,9, sorting living cells based on DNA content, and acting as a probe for DNA-Drug interactions3. Utilized in the design and development of a fluorimetric assay to quantitate cell numbers in microtiter plates. The methodology of the assay is based on Hoechst 33258 binding to DNA and is sensitive for a thousand cells. One application of this is assay is the normalization of ELISA data.10 The illumination of Hoechst 33253 coupled with Merocyanine 540 can be utilized as an effective method to eradicate bacterial infections (i.e., A. laidlawii contaminated corneal endothelial cell cultures) .11
Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.Excitation max. = 346 nmEmission max. = 460 nm

33266 

Biochem/physiol Actions
Membrane-permeable, fluorescent DNA stain with low cytotoxicity that intercalate in A-T regions of DNA.
Application
Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.Excitation max. = 346 nmEmission max. = 460 nm