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Merck

94403

Hoechst 33258 solution

1 mg/mL in H2O, ≥98.0% (HPLC)

Sinónimos:

bisBenzimide H 33258 solution

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Fórmula empírica (notación de Hill):
C25H24N6O · 3HCl
Número CAS:
Peso molecular:
533.88
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.32
Assay:
≥98.0% (HPLC)
Form:
liquid
Quality level:
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Nombre del producto

Hoechst 33258 solution, 1 mg/mL in H2O, ≥98.0% (HPLC)

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

InChI key

SMNPLAKEGAEPJD-UHFFFAOYSA-N

assay

≥98.0% (HPLC)

form

liquid

Quality Level

mol wt

533.88 g/mol

concentration

1 mg/mL in H2O

color

colorless
very light green-yellow to dark green-yellow
very light yellow to dark yellow

pH

6.0-8.0 (25 °C)

solubility

DMF: soluble
H2O: soluble

density

1.00 g/cm3

fluorescence

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

storage temp.

2-8°C

Application

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.

General description

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.

Clase de almacenamiento

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable


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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.
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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
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