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94403

Sigma-Aldrich

Hoechst 33258 -Lösung

1 mg/mL in H2O, ≥98.0% (HPLC)

Synonym(e):

Bisbenzimid H 33258 -Lösung

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About This Item

Empirische Formel (Hill-System):
C25H24N6O · 3HCl
CAS-Nummer:
23491-45-4
Molekulargewicht:
533.88
UNSPSC-Code:
12171500
PubChem Substanz-ID:
329770334
NACRES:
NA.32

Qualitätsniveau

100

Assay

≥98.0% (HPLC)

Form

liquid

Konzentration

1 mg/mL in H2O

Löslichkeit

DMF: soluble
H2O: soluble

Fluoreszenz

λex 355 nm; λem 465 nm in TE buffer; DNA

Lagertemp.

2-8°C

SMILES String

Cl.Cl.Cl.CN1CCN(CC1)c2ccc3[nH]c(nc3c2)-c4ccc5nc([nH]c5c4)-c6ccc(O)cc6

InChI

1S/C25H24N6O.3ClH/c1-30-10-12-31(13-11-30)18-5-9-21-23(15-18)29-25(27-21)17-4-8-20-22(14-17)28-24(26-20)16-2-6-19(32)7-3-16;;;/h2-9,14-15,32H,10-13H2,1H3,(H,26,28)(H,27,29);3*1H

InChIKey

SMNPLAKEGAEPJD-UHFFFAOYSA-N

Allgemeine Beschreibung

Hoechst 33258, also known as bisbenzimide, is a fluorescent blue dye. It is categorized as a chromosomal stain that binds to the minor groove of the DNA double helix recognizing a run of four A-T base pairs.

Anwendung

Hoechst 33258 is used to estimate DNA concentration in samples by fluorometry which is better than spectrophotometry, allowing the determination of nanogram quantities of DNA. Also, Hoechst 33258 is suitable to detect mycoplasma contamination in cell cultures due to its high fluorescence ability.

Lagerklassenschlüssel

10 - Combustible liquids

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

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Cornelia Fritsch et al.
PLoS genetics, 15(7), e1008269-e1008269 (2019-07-13)
Development of eye tissue is initiated by a conserved set of transcription factors termed retinal determination network (RDN). In the fruit fly Drosophila melanogaster, the zinc-finger transcription factor Glass acts directly downstream of the RDN to control identity of photoreceptor
Rajam S Mani et al.
The Journal of biological chemistry, 294(2), 520-530 (2018-11-18)
Polynucleotide kinase/phosphatase (PNKP) and X-ray repair cross-complementing 1 (XRCC1) are key proteins in the single-strand DNA break repair pathway. Phosphorylated XRCC1 stimulates PNKP by binding to its forkhead-associated (FHA) domain, whereas nonphosphorylated XRCC1 stimulates PNKP by interacting with the PNKP
Hansruedi Mathys et al.
Nature, 570(7761), 332-337 (2019-05-03)
Alzheimer's disease is a pervasive neurodegenerative disorder, the molecular complexity of which remains poorly understood. Here, we analysed 80,660 single-nucleus transcriptomes from the prefrontal cortex of 48 individuals with varying degrees of Alzheimer's disease pathology. Across six major brain cell
Michael R Green et al.
Cold Spring Harbor protocols, 2017(5) (2017-05-04)
Measuring the concentration of DNA using fluorometry is more sensitive than spectrophotometry, allowing the detection of nanogram quantities of DNA. In this assay, DNA preparations of known and unknown concentrations are incubated with the fluorochrome Hoechst 33258. Absorption values for
Ismail Abdou et al.
Nucleic acids research, 43(2), 875-892 (2014-12-30)
In the current model of DNA SSBR, PARP1 is regarded as the sensor of single-strand breaks (SSBs). However, biochemical studies have implicated LIG3 as another possible SSB sensor. Using a laser micro-irradiation protocol that predominantly generates SSBs, we were able
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