BI dihydrochloride

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Cat.No. 7466 - BI dihydrochlorideBI hydrochlorideBI hydrochloride | C19H14F2N4O2.2HCl
Description: DFHBI derivative for imaging of RNA in living cells that bind Broccoli aptamers
Chemical Name: (5Z)-3-(1H-Benzimidazol-7-ylmethyl)-5-[(3,5-difluoro-4-hydroxyphenyl)methylene]-3,5-dihydro-2-methyl-4H-imidazol-4-one dihydrochloride
Purity: ≥98% (HPLC)
Datasheet
Citations
Reviews
Literature (1)

Biological Activity

BI is a DFHBI derivative for imaging of RNA in cells. BI increases brightness and photostability of Broccoli aptamers in cells. BI enables imaging of single Broccoli-tagged mRNAs in living cells. BI exhibits peak excitation of 470 nm and peak fluorescence emission of 505 nm when bound to Broccoli. BI exhibits higher affinity for Broccoli aptamers and a 10.5-fold increase in cellular fluorescence compared with DFHBI-1T (Cat. No. 5610) (KD values are 51 and 305 nM, respectively).

Licensing Information

Sold under license from Lucerna

Optical Data for BI dihydrochloride

Emission Color Green
λabs 470 nm
λem 505 nm
Extinction Coefficient (ε) 33600 M-1cm-1
Quantum Yield (φ) 0.669
Cell Permeable Yes
Application DFHBI derivative for imaging of RNA in living cells

Technical Data

M. Wt 441.26
Formula C19H14F2N4O2.2HCl
Storage Store at -20°C
Purity ≥98% (HPLC)
InChI Key YKXWKZLDMGAVJO-ZYMKCKPMSA-N
Smiles CC1=N/C(C(N1CC2=C3NC=NC3=CC=C2)=O)=C\C4=CC(F)=C(C(F)=C4)O.Cl.Cl

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Solubility
water 44.13 100
DMSO 22.06 50

Preparing Stock Solutions

The following data is based on the product molecular weight 441.26. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.27 mL 11.33 mL 22.66 mL
5 mM 0.45 mL 2.27 mL 4.53 mL
10 mM 0.23 mL 1.13 mL 2.27 mL
50 mM 0.05 mL 0.23 mL 0.45 mL

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References

References are publications that support the biological activity of the product.

Li et al (2020) Fluorophore promoted RNA folding and photostability enables imaging of single Broccoli-tagged mRNAs in live mammalian cells. Angew.Chem.Int.Ed.Engl. 59 4511 PMID: 31850609


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Citations for BI dihydrochloride

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Literature in this Area

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Fluorescent Probes and Dyes Research Product Guide

Fluorescent Probes and Dyes Research Product Guide

This product guide provides a background to the use of Fluorescent Probes and Dyes, as well as a comprehensive list of our

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  • Bioluminescent Substrates
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