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DAPI (hydrochloride) Catalog No.GC43378

Size Price Stock Qty
10mM (in 1mL DMSO)
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In stock
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Sample solution is provided at 25 µL, 10mM.

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Chemical Properties

Cas No. 28718-90-3 SDF Download SDF
Synonyms N/A
Chemical Name N/A
Canonical SMILES NC(C(C=C1)=CC=C1C2=CC3=CC=C(C(N)=N)C=C3N2)=N.Cl.Cl
Formula C16H15N5•2HCl M.Wt 350.3
Solubility Insoluble in EtOH; ≥10 mg/mL in H2O; ≥53.3 mg/mL in DMSO Storage Store at -20°C
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
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**When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / CoA (available online).



DAPI is a fluorescent probe which is commonly used to stain DNA and chromosomes for fluorescent microscopy and flow cytometry applications. It forms a fluorescent complex by attaching in the minor groove of A-T rich sequences of DNA. DAPI is often used as a counterstain, as its ultraviolet (max 358 nm) excitation and blue (max 461 nm) emission wavelengths separate it nicely from many popular primary fluorophores. It can be used on either fixed or live cells, although its low permeability in live cells demands that higher concentrations be used.