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  3. Fluorescent Dye
  4. DFHBI

DFHBI is a small molecule that resembles the chromophore of green fluorescent protein (GFP). DFHBI can be used for imaging RNA in living cells. . Spinach and DFHBI are essentially nonfluorescent when unbound, whereas the Spinach-DFHBI complex is brightly fluorescent both in vitro and in living cells (Ex/Em = 469/501 nm).

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DFHBI

DFHBI Chemical Structure

CAS No. : 1241390-29-3

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 En stock
Solution
10 mM * 1 mL in DMSO En stock
Solid
5 mg En stock
10 mg En stock
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Based on 7 publication(s) in Google Scholar

DFHBI Related Antibodies

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Description

DFHBI is a small molecule that resembles the chromophore of green fluorescent protein (GFP). DFHBI can be used for imaging RNA in living cells. . Spinach and DFHBI are essentially nonfluorescent when unbound, whereas the Spinach-DFHBI complex is brightly fluorescent both in vitro and in living cells (Ex/Em = 469/501 nm).

In Vitro

Guide (The following is our recommended protocol. This protocol is for reference only and should be modified according to your specific needs).
1. Solution preparation[3]
1.1 Preparation of stock solution
Solvent: DMSO
Concentration: 20 mM (optimized according to the experiment).
Storage: Store at -20°C or -80°C in dark after aliquoting. Avoid repeated freezing and thawing.
1.2 Preparation of working solution
Dilute to 20 μM with PBS or cell culture medium (pH 7.4) (optimized according to the experiment).
Note: The working solution should be prepared and used immediately. Keep it away from light.

2. Cell staining
2.1 HEK293T cells are transfected with pAV-5S.
2.2 Add 20 μM DFHB into the cell plate.
2.3 Incubate the dye-loading plate in a cell incubator for 30 minutes.
2.4 Fluorescence microscopy detection (Ex/Em = 469/501 nm).

These RNAs interact with DFHBI to produce a bluish-green fluorescence emission (501 nm) after excitation at 447 nm. Spinach and Spinach2 are RNA aptamers that can be used for the genetic encoding of fluorescent RNA. Spinach2 binds and activates the fluorescence of DFHBI, allowing the dynamic localizations of Spinach2-tagged RNAs to be imaged in live cells. The spectral properties of Spinach2 are limited by DFHBI, which produces fluorescence that is bluish-green and is not optimized for filters commonly used in fluorescence microscopes. Spinach and Spinach2 bind to DFHBI have fluorescence excitation maxima of 447 nm and peak fluorescence emission of 501 nm[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

DFHBI Related Antibodies
Masse moléculaire

252.22

Formule

C12H10F2N2O2
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C(N(C)C(C)=N/1)C1=C\C2=CC(F)=C(O)C(F)=C2
Livraison

Room temperature in continental US; may vary elsewhere.
Stockage

4°C, protect from light

*In solvent : -80°C, 1 year; -20°C, 6 months (protect from light)

Solvant et solubilité
In Vitro: 

DMSO : ≥ 83.33 mg/mL (330.39 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.9648 mL 19.8240 mL 39.6479 mL
5 mM 0.7930 mL 3.9648 mL 7.9296 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months (protect from light). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

  • Calculateur de molarité

  • Calculateur de dilution

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
Pureté et documentation

Purity: 99.13%

SDS (393 KB)

COA (251 KB) HNMR (132 KB) LCMS (95 KB)

Instruction de manipulation (2659 KB)
Références

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months (protect from light). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.9648 mL 19.8240 mL 39.6479 mL 99.1198 mL
5 mM 0.7930 mL 3.9648 mL 7.9296 mL 19.8240 mL
10 mM 0.3965 mL 1.9824 mL 3.9648 mL 9.9120 mL
15 mM 0.2643 mL 1.3216 mL 2.6432 mL 6.6080 mL
20 mM 0.1982 mL 0.9912 mL 1.9824 mL 4.9560 mL
25 mM 0.1586 mL 0.7930 mL 1.5859 mL 3.9648 mL
30 mM 0.1322 mL 0.6608 mL 1.3216 mL 3.3040 mL
40 mM 0.0991 mL 0.4956 mL 0.9912 mL 2.4780 mL
50 mM 0.0793 mL 0.3965 mL 0.7930 mL 1.9824 mL
60 mM 0.0661 mL 0.3304 mL 0.6608 mL 1.6520 mL
80 mM 0.0496 mL 0.2478 mL 0.4956 mL 1.2390 mL
100 mM 0.0396 mL 0.1982 mL 0.3965 mL 0.9912 mL
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DFHBI Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

DFHBI1241390-29-3Fluorescent DyeInhibitorinhibitorinhibit

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