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Merck

14530

bisBenzimide H 33258

suitable for fluorescence, ≥98.0% (HPLC)

Synonyme(s) :

2′-(4-Hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5′-bi(1H-benzimidazole) trihydrochloride, 2-[2-(4-Hydroxyphenyl)-6-benzimidazoyl]-6-(1-methyl-4-piperazyl)benzimidazole trihydrochloride, BBIH, BXI-72, HOE 33258, Hoechst 33258, NSC334072

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A propos de cet article

Formule empirique (notation de Hill) :
C25H24N6O · 3HCl
Numéro CAS:
23491-45-4
Poids moléculaire :
533.88
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
57647172
EC Number:
245-690-6
Beilstein/REAXYS Number:
4088183
MDL number:
MFCD00012679

Principaux documents

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InChI key

OWRSPPSBNWJJAR-UHFFFAOYSA-N

InChI

1S/C27H28N6O.3ClH.H2O/c1-32-10-12-33(13-11-32)22-5-9-25-21(15-22)17-29-27(31-25)19-4-8-24-20(14-19)16-28-26(30-24)18-2-6-23(34)7-3-18;;;;/h2-9,14-15,34H,10-13,16-17H2,1H3,(H,28,30)(H,29,31);3*1H;1H2

SMILES string

Cl[H].Cl[H].Cl[H].[H]O[H].CN1CCN(CC1)c2ccc3NC(=NCc3c2)c4ccc5NC(=NCc5c4)c6ccc(O)cc6

assay

≥98.0% (HPLC)

form

powder

solubility

water and ethanol: 10 mg/mL, H2O: soluble, ethanol: soluble

fluorescence

λex 338 nm; λem 505 nm (pH 7.0), λex 355 nm; λem 465 nm in TE buffer; DNA

suitability

suitable for fluorescence

storage temp.

2-8°C

Quality Level

200

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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 with a high binding constant, making it a useful stain for DNA, chromosomes, and nuclei . 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). Furthermore, the solution ionic strength and pH has been shown to be independent of the Stokes′ shift of bisBenzimide H 33258 . The properties of this dye make it useful in several applications such as detecting mycoplasma contamination in tissue culture , indicating early onset of apoptosis, sorting living cells based on DNA content, and acting as a probe for DNA-Drug interactions. 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. 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) . BisBenzimide H 33258 is commonly used in many established staining protocols (David M. Terrian, Cancer Cell Signaling – Methods and Protocols,
Springer, Volume 218 ).
bisBenzimide H 33258 is useful for staining DNA, chromosomes and nuclei. bisBenzimide H 33258 may be used for fluorescence microscopy or flow cytometry.
Excitation max. = 346 nm
Emission max. = 460 nm
bisBenzimide H 33258 is useful for staining DNA, chromosomes, and nuclei. May be used for fluorescence microscopy or flow cytometry.

Biochem/physiol Actions

bisBenzimide H 33258 is a potent and selective Bcl-XL inhibitor.
bisBenzimide H 33258 is a potent and selective Bcl-XL inhibitor. bisBenzimide H 33258 is a 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 cells; simple two-step fluorimetric assay of DNA in isolated nuclei, cell extracts, or crude homogenates using Hoechst 33258

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
BCCM6952
BCCK2752
BCCH4237
BCCF1910
BCCB2461

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

M Battaglia et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 69(3), 152-156 (1994-05-01)
DNA fluorochrome staining with Hoechst 33258 bisbenzimide is commonly used for detection of mycoplasma contamination in cell cultures. Photobleaching of Hoechst 33258 is pronounced under the conditions of intense illumination, high magnification and resolution required for detection of mycoplasmas. To
R Jin et al.
Proceedings of the National Academy of Sciences of the United States of America, 85(23), 8939-8942 (1988-12-01)
We compare the fluorescence properties of bisbenzimide (also known as Hoechst 33258) bound to the minor groove of the poly[d(AT)].poly[d(AT)] duplex with the corresponding fluorescence properties of bisbenzimide dissolved in neat organic solvents and mixed organic/aqueous solvents. Based on these
Improved microfluorometric DNA determination in biological material using 33258 Hoechst.
C F Cesarone et al.
Analytical biochemistry, 100(1), 188-197 (1979-11-15)
M Tarshis et al.
Journal of immunological methods, 168(2), 245-252 (1994-02-10)
Mycoplasma infection can substantially affect the biological properties of cells in vitro. We have devised a method for the selective killing of mycoplasmas, e.g., A. laidlawii, M. fermentans, M. hyorhinis and M. arginini, from experimentally infected cell cultures. This approach
Fluorometric properties of the bibenzimidazole derivative Hoechst 33258, a fluorescent probe specific for AT concentration in chromosomal DNA.
B Weisblum et al.
Chromosoma, 46(3), 255-260 (1974-01-01)
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