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Dabcyl acid

🥰Excellent
Catalog No. T18963Cas No. 6268-49-1
Alias Para-methyl red, DABCYL

Dabcyl acid (DABCYL) is the original dark fluorescence quencher.

Dabcyl acid

Dabcyl acid

🥰Excellent
Purity: 99.27%
Catalog No. T18963Alias Para-methyl red, DABCYLCas No. 6268-49-1
Dabcyl acid (DABCYL) is the original dark fluorescence quencher.
Pack SizePriceAvailabilityQuantity
100 mg$42In Stock
500 mg$98In Stock
1 g$143In Stock
1 mL x 10 mM (in DMSO)$30In Stock
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Purity:99.27%
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Product Introduction

Bioactivity
Description
Dabcyl acid (DABCYL) is the original dark fluorescence quencher.
Cell Research
I. Fluorescence resonance energy transfer (FRET) experiment
a. Reagent preparation: synthesize or purchase DABCYL-labeled donor molecules and matching fluorophore-labeled acceptor molecules, such as FITC, etc. Prepare appropriate buffer, such as PBS, etc.
b. Experimental steps:
1. Dissolve the labeled donor and acceptor molecules in buffer respectively to prepare solutions of appropriate concentrations.
2. Add appropriate amounts of donor solution and acceptor solution to the cuvette or fluorescence enzyme labeling plate in sequence to make the final concentrations of the two meet the experimental design requirements, such as 10 nM for the donor concentration and 20 nM for the acceptor concentration.
3. Use a fluorescence spectrometer to set the appropriate excitation wavelength and emission wavelength range, first scan the fluorescence spectra of the donor and acceptor separately, and then scan the fluorescence spectrum of the mixture of the two, and observe the FRET phenomenon, that is, the decrease in the fluorescence intensity of the donor and the increase in the fluorescence intensity of the acceptor.
II. Protein labeling and activity detection experiment
a. Reagent preparation: Dissolve DABCYL-NHS ester in an anhydrous organic solvent such as DMF or DMSO. Prepare a solution of a certain concentration. Prepare the protein solution to be labeled and place it in a suitable buffer, such as Tris-HCl buffer.
b. Experimental steps:
1. Take an appropriate amount of protein solution and slowly add DABCYL-NHS ester solution to make the molar ratio of DABCYL to protein reach a predetermined value, such as 1:5, etc., and stir the reaction at room temperature or 4°C for 1-2 hours.
2. After the reaction, remove the unreacted DABCYL by dialysis or gel filtration.
3. The labeled protein can be tested for its labeling efficiency by SDS-PAGE and other methods, and corresponding activity tests, such as enzyme activity assays, can be performed to evaluate the effect of labeling on protein activity.
III. Cell uptake experiment
a. Reagent preparation: Synthesize DABCYL-labeled cell penetrating peptides or other carrier molecules and dissolve them in cell culture medium or PBS. Prepare the corresponding cell line, such as HeLa Cells, etc., and culture to the logarithmic growth phase.
b. Experimental steps:
1. Inoculate the cells in the culture plate and culture to the appropriate density.
2. Add a solution containing DABCYL labeled molecules to make the final concentration reach the set value, such as 10 μM, etc., and incubate in a 37℃, 5% CO₂ incubator for a certain time, such as 1-4 hours.
3. After the incubation, wash the cells with PBS to remove the unabsorbed labeled molecules.
4. The fluorescence distribution in the cells can be observed by fluorescence microscopy, or the cell uptake of DABCYL labeled molecules can be quantitatively analyzed using flow cytometry.
AliasPara-methyl red, DABCYL
Chemical Properties
Molecular Weight269.3
FormulaC15H15N3O2
Cas No.6268-49-1
SmilesCN(C)c1ccc(cc1)\N=N\c1ccc(cc1)C(O)=O
Relative Density.1.17g/cm3
Storage & Solubility Information
Storagekeep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice.
Solubility Information
DMSO: 25 mg/mL (92.83 mM), Sonication is recommended.
Solution Preparation Table
DMSO
1mg5mg10mg50mg
1 mM3.7133 mL18.5667 mL37.1333 mL185.6665 mL
5 mM0.7427 mL3.7133 mL7.4267 mL37.1333 mL
10 mM0.3713 mL1.8567 mL3.7133 mL18.5667 mL
20 mM0.1857 mL0.9283 mL1.8567 mL9.2833 mL
50 mM0.0743 mL0.3713 mL0.7427 mL3.7133 mL

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Please enter your animal experiment information in the following box and click Calculate to obtain the mother liquor preparation method and in vivo formula preparation method:
TargetMol | Animal experimentsFor example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL . TargetMol | Animal experiments A total of 10 animals were administered, and the formula you used is 5% TargetMol | reagent DMSO+30% PEG300+5% Tween 80+60% Saline/PBS/ddH2O. So your working solution concentration is 2 mg/mL。
Mother liquor preparation method: 2 mg of drug dissolved in 50 μL DMSOTargetMol | reagent (mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.
Preparation method for in vivo formula: Take 50 μL DMSOTargetMol | reagent main solution, add 300 μLPEG300TargetMol | reagent mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH2OTargetMol | reagent mix well and clarify
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