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Bovine Serum Albumin

Cat No.:V28836 Purity: ≥98%
Bovine Serum Albumin (BSA) is aglobularprotein composed of 583-amino acid residues.
Bovine Serum Albumin
Bovine Serum Albumin Chemical Structure CAS No.: 9048-46-8
Product category: New12
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
10g
25g
50g
100g
Other Sizes
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description
Bovine Serum Albumin (BSA) is a globular protein composed of 583-amino acid residues. It has three homologous all-α domains, which are organized in a heart-shaped structure. BSA can be used in a numer of biochemical applications.
Bovine Serum Albumin (BSA) is a globular protein composed of 583 amino acid residues, with a molecular weight of approximately 66.4 kDa. It is a serum albumin protein derived from cows. It is one of the most widely used proteins in biochemical and cell biology research due to its stability, low cost, and lack of interference with many biological assays.
Biological Activity I Assay Protocols (From Reference)
Targets
Bovine Serum Albumin does not have a specific pharmacological target. It functions as a carrier protein, a blocking agent, and a stabilizer. It binds to various molecules, including fatty acids, hormones, and drugs, and is used to stabilize proteins and enzymes in solution. It is also used as a blocking agent to prevent non-specific binding in immunoassays.
ln Vitro
In vitro, Bovine Serum Albumin is used for a wide range of applications. It is used as a standard in protein quantification assays, such as the Bradford assay. It is used as a blocking agent in immunohistochemistry and ELISA to prevent non-specific binding. It is also used to stabilize enzymes and other proteins in solution and to supplement cell culture media.
ln Vivo
In vivo, Bovine Serum Albumin is not used as a therapeutic agent. It is used as a component of some diagnostic reagents and as a stabilizer in pharmaceutical formulations. It is also used in research to study protein-protein interactions and as a model protein for studying protein folding and stability.
Enzyme Assay
The in vitro assay for Bovine Serum Albumin is not a biological assay but an analytical one. Its concentration is measured using the Bradford assay, which relies on the binding of Coomassie Brilliant Blue dye to the protein. Its purity is assessed by SDS-PAGE. Its ability to bind to various molecules can be studied using equilibrium dialysis or isothermal titration calorimetry (ITC).
Cell Assay
In vitro cell culture studies for Bovine Serum Albumin utilize it as a supplement in cell culture media. It provides a source of protein and helps to stabilize other components in the media. It is also used to study the uptake and transport of fatty acids and other molecules by cells.
Animal Protocol
In vivo animal experiments for Bovine Serum Albumin are not common. However, it is sometimes used as a carrier protein for the administration of hydrophobic compounds in animal studies. It can also be used as a model antigen to study the immune response.
ADME/Pharmacokinetics
Bovine Serum Albumin is a protein with a molecular weight of approximately 66.4 kDa and a molecular formula of C2934H4581N781O897S39. It is a lyophilized powder that is soluble in water and aqueous buffers. It is typically stored at 4°C or -20°C for long-term stability. Its stability is maintained under recommended storage conditions.
Toxicity/Toxicokinetics
Toxicological data for Bovine Serum Albumin indicate that it is generally non-toxic. It is a naturally occurring protein that is widely used in research and as a food additive. It is not intended for human therapeutic use as a drug, although it is used as a component of some pharmaceutical formulations.
References

[1]. Aggregation and fibrillation of bovine serum albumin. Biochim Biophys Acta. 2007 Sep;1774(9):1128-38.

Additional Infomation
Bovine Serum Albumin is a research reagent with no clinical approval as a drug. It is one of the most widely used proteins in biochemistry and molecular biology. It is used as a standard in protein assays, as a blocking agent in immunoassays, as a stabilizer for enzymes, and as a supplement in cell culture media.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C3F8
Molecular Weight
188.019329071045
CAS #
9048-46-8
Appearance
White to light yellow solid powder
SMILES
FC(C(F)(F)F)(C(F)(F)F)F
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

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)
H2O : ~50 mg/mL
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 5.3186 mL 26.5929 mL 53.1858 mL
5 mM 1.0637 mL 5.3186 mL 10.6372 mL
10 mM 0.5319 mL 2.6593 mL 5.3186 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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