14530

bisBenzimide H 33258

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
• Formule empirique (notation de Hill): C₂₅H₂₄N₆O · 3HCl
• Numéro CAS: 23491-45-4
• Poids moléculaire : 533.88
• Numéro Beilstein : 4088183
• Numéro CE : 245-690-6
• Numéro MDL: MFCD00012679
• Code UNSPSC : 12171500
• ID de substance PubChem : 57647172
• Nomenclature NACRES : NA.32

Propriétés

• Qualité: for fluorescence
• Niveau de qualité: 200
• Pureté: ≥98.0% (HPLC)
• Forme: powder
• Solubilité: water and ethanol: 10 mg/mL; H₂O: soluble; ethanol: soluble
• Fluorescence: λ_ex 338 nm; λ_em 505 nm (pH 7.0); λ_ex 355 nm; λ_em 465 nm in TE buffer; DNA
• Température de stockage: 2-8°C
• Chaîne SMILES: Cl[H].Cl[H].Cl[H].[H]O[H].CN1CCN(CC1)c2ccc3NC(=NCc3c2)c4ccc5NC(=NCc5c4)c6ccc(O)cc6
• 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
• Clé InChI: OWRSPPSBNWJJAR-UHFFFAOYSA-N

Description

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

Actions biochimiques/physiologiques

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.

Autres remarques

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: dust mask type N95 (US), Eyeshields, Gloves