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  4. Kojic acid

Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent.

For research use only. We do not sell to patients.

Kojic acid Chemical Structure

Kojic acid Chemical Structure

CAS No. : 501-30-4

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10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

Kojic acid Related Antibodies

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Amebae Coccidia Leishmania Mite Plasmodium Toxoplasma Trypanosoma Schistosome

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Description

Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent[1].

Molecular Weight

142.11

Formula

C6H6O4
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C1C=C(CO)OC=C1O
Structure Classification
Initial Source

Aspergillus, Penicillium or Acetobacter spp
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (703.68 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 50 mg/mL (351.84 mM; Need ultrasonic)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 7.0368 mL 35.1840 mL 70.3680 mL
5 mM 1.4074 mL 7.0368 mL 14.0736 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: 5 mg/mL (35.18 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (17.59 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  PBS

    Solubility: 14.29 mg/mL (100.56 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

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
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation

Purity: 99.99%

COA (247 KB)

Handling Instructions (2659 KB)
References

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O / DMSO 1 mM 7.0368 mL 35.1840 mL 70.3680 mL 175.9201 mL
5 mM 1.4074 mL 7.0368 mL 14.0736 mL 35.1840 mL
10 mM 0.7037 mL 3.5184 mL 7.0368 mL 17.5920 mL
15 mM 0.4691 mL 2.3456 mL 4.6912 mL 11.7280 mL
20 mM 0.3518 mL 1.7592 mL 3.5184 mL 8.7960 mL
25 mM 0.2815 mL 1.4074 mL 2.8147 mL 7.0368 mL
30 mM 0.2346 mL 1.1728 mL 2.3456 mL 5.8640 mL
40 mM 0.1759 mL 0.8796 mL 1.7592 mL 4.3980 mL
50 mM 0.1407 mL 0.7037 mL 1.4074 mL 3.5184 mL
60 mM 0.1173 mL 0.5864 mL 1.1728 mL 2.9320 mL
80 mM 0.0880 mL 0.4398 mL 0.8796 mL 2.1990 mL
100 mM 0.0704 mL 0.3518 mL 0.7037 mL 1.7592 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Kojic acid 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:

Kojic acid501-30-4ParasiteInhibitorinhibitorinhibit

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