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DEAE-Sephadex A 25

Cat No.:V62261 Purity: ≥98%
DEAE-Sephadex A 25 is a weak anion exchanger.
DEAE-Sephadex A 25
DEAE-Sephadex A 25 Chemical Structure CAS No.: 12609-80-2
Product category: Others 12
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
DEAE-Sephadex A 25 is a weak anion exchanger.
DEAE-Sephadex A 25 (CAS# 12609-80-2) is a diethylaminoethyl (DEAE) derivative of Sephadex, a cross-linked dextran gel. It is an ion exchange chromatography medium used for the separation and purification of biomolecules. DEAE-Sephadex A 25 is a weak anion exchanger that binds negatively charged molecules such as proteins, nucleic acids, and polysaccharides. The compound is widely used in biochemical research for protein purification, enzyme isolation, and nucleic acid separation. It has a particle size suitable for laboratory-scale and preparative chromatography.
Biological Activity I Assay Protocols (From Reference)
Targets
DEAE-Sephadex A 25 targets negatively charged biomolecules through ion exchange interactions. The diethylaminoethyl groups on the Sephadex matrix provide positively charged binding sites that interact with negatively charged molecules such as proteins, nucleic acids, and polysaccharides. The compound's targets are chemical rather than biological, as it is used as a chromatography medium for biomolecule separation. Its applications are limited to biochemical research and purification.
ln Vitro
In vitro studies of DEAE-Sephadex A 25 have focused on its role as an ion exchange chromatography medium. The compound's ability to bind and separate biomolecules based on charge has been characterized. It is widely used for protein purification, enzyme isolation, and nucleic acid separation. These in vitro studies provide foundational data for understanding the compound's utility in biochemical research and purification applications.
ln Vivo
In vivo studies of DEAE-Sephadex A 25 are not applicable as the compound is a chromatography medium used for in vitro biomolecule separation. The compound is not intended for administration to living organisms. Its applications are limited to biochemical research and purification. The compound is not approved for human therapeutic use and is intended for research purposes only.
Enzyme Assay
In vitro chromatography assays for DEAE-Sephadex A 25 typically involve testing its ability to bind and separate biomolecules. Proteins, nucleic acids, or polysaccharides are applied to the column and eluted using salt gradients. The compound's binding capacity and resolution are assessed. Its physical properties such as particle size and swelling characteristics are characterized. All assays are performed with appropriate controls and standardized protocols.
Cell Assay
In vitro cell-based assays are not applicable for DEAE-Sephadex A 25 as the compound is a chromatography medium used for biomolecule purification rather than a biological agent. The compound is not intended for cell-based studies as a direct pharmacological agent. Its applications are limited to biochemical research and purification. Cell-based assays may be used to evaluate the biological activity of proteins purified using this medium, but the medium itself is not tested in cell-based systems.
Animal Protocol
In vivo animal experiments are not applicable for DEAE-Sephadex A 25 as the compound is a chromatography medium used for in vitro biomolecule purification rather than a therapeutic agent. The compound is not administered to animals for pharmacological evaluation. Its applications are limited to biochemical research and purification. The compound is not intended for in vivo use.
ADME/Pharmacokinetics
The pharmacokinetic properties of DEAE-Sephadex A 25 are not applicable as the compound is a chromatography medium used for in vitro biomolecule purification rather than a therapeutic agent. The compound is a cross-linked dextran gel with DEAE functional groups. Its physicochemical properties including particle size, swelling capacity, and ion exchange capacity are characterized for its use as a chromatography medium.
Toxicity/Toxicokinetics
The toxicity profile of DEAE-Sephadex A 25 has been evaluated in the context of its use as a laboratory reagent. As a chromatography medium, it is generally considered safe for laboratory use when handled properly. Proper handling procedures including use of personal protective equipment are recommended when working with the compound. The compound is not approved for human therapeutic use and is intended for research purposes only.
References
[1]. Masataka Hiraide, et al. Evaluation of humic complexes of trace metals in river water by adsorption on indium-treated XAD-2 resin and DEAE-Sephadex A-25 anion exchanger.Fresenius' Journal of Analytical Chemistry volume 348, pages758–761 (1994).
Additional Infomation
DEAE-Sephadex A 25 (CAS# 12609-80-2) is a diethylaminoethyl (DEAE) derivative of Sephadex, a cross-linked dextran gel. It is an ion exchange chromatography medium used for the separation and purification of biomolecules. DEAE-Sephadex A 25 is a weak anion exchanger that binds negatively charged molecules such as proteins, nucleic acids, and polysaccharides. It is widely used in biochemical research for protein purification, enzyme isolation, and nucleic acid separation.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C11H9N3O2.NA+
Molecular Weight
238.19786
CAS #
12609-80-2
Appearance
White to off-white solid powder
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: This product requires protection from light (avoid light exposure) during transportation and storage.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.1982 mL 20.9908 mL 41.9815 mL
5 mM 0.8396 mL 4.1982 mL 8.3963 mL
10 mM 0.4198 mL 2.0991 mL 4.1982 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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