Hoechst 33258

Hoechst 33258
  • CAS No.:23491-45-4
Other grades of this product :
Hoechst 33258 Basic information
Product Name:Hoechst 33258
Synonyms:Bis-BenzimideFluorochrome;p-(5-(5-(4-Methyl-1-piperazinyl)-1H-2-benzimidazolyl)-1H-2-benzimidazolyl)phenol trihydrochloride;Hoechst(R) 33258,98%;bisBenzimide, 2μ-(4-hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5μ-bi-1H-benzimidazole hydrate trihydrochloride;HOE 33258, Hoechst 33258, 2μ-(4-Hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5μ-bi(1H-benzimidazole) trihydrochloride, 2-[2-(4-Hydroxyphenyl)-6-benzimidazoyl]-6-(1-methyl-4-piperazyl)benzimidazole trihydrochloride;4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride;Phenol, p-(5-(5-(4-methyl-1-piperazinyl)-2-benzimidazolyl)-2-benzimidazolyl)-, trihydrochloride;Pibenzimol HCl
CAS:23491-45-4
MF:C25H25ClN6O
MW:460.97
EINECS:245-690-6
Product Categories:
Mol File:23491-45-4.mol
Hoechst 33258 Chemical Properties
Melting point 314 °C
density 1.5099 (rough estimate)
refractive index 1.6300 (estimate)
storage temp. -20°C
solubility H2O: 10 mg/mL
form powder
color Yellow to Very Dark Yellow
Water Solubility SOLUBLE
BRN 4088183
CAS DataBase Reference23491-45-4(CAS DataBase Reference)
EPA Substance Registry SystemPhenol, 4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]-, trihydrochloride (23491-45-4)
Safety Information
Hazard Codes Xn
Risk Statements 22-36/38-36/37/38-20/21/22
Safety Statements 26-36-24/25-23
WGK Germany 3
RTECS SM1140500
3-8-10
HS Code 32129000
Hoechst 33258 Usage And Synthesis
Chemical Propertiesyellow to yellow-green powder
UsesHoechst 33258 is useful for staining DNA, chromosomes and nuclei. The nucleic acid binds to the minor groove of DNA at AT-rich sequences. This dye is commonly used for determining the DNA content of viable cells without detergent treatment or fixation and for fluorescence
UsesHoechst 33258 is a Hoechst stain used to stain DNA. It is part of a family of fluorescent dyes. Dyes and metabolites.
UsesbisBenzimide 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 nmEmission max. =?460 nm
General DescriptionMembrane-permeable, adenine-thymine-specific fluorescent stain. Useful for staining DNA, chromosomes, and nuclei. Increases the rate of channel-mediated Ca2+ efflux from junctional cytoplasmic reticulum vesicles. Can also be used to detect mycoplasma contamination in tissue culture. H 33258 and the related compound H 33342 (Cat. No. 382065) have been used in conjunction with RNA aptamers in the 5′ untranslated region (UTR) to control expression of transfected gene constructs.
Biochem/physiol ActionsbisBenzimide 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.
Hoechst 33258 Preparation Products And Raw materials

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