2. Anti-infection
  3. Parasite
  4. Pyrethrin II

Pyrethrin II is a insecticidal ingredient of pyrethrins. Pyrethrins is a biogenic insecticide, that can be extracted from Chrysanthemum cinerariifolium.

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

Pyrethrin II Chemical Structure

Pyrethrin II Chemical Structure

CAS No. : 121-29-9

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50 mg USD 80 In-stock
100 mg USD 130 In-stock
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Based on 1 publication(s) in Google Scholar

Pyrethrin II Related Antibodies

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Amebae Coccidia Leishmania Mite Plasmodium Toxoplasma Trypanosoma Schistosome

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Pyrethrin II is a insecticidal ingredient of pyrethrins. Pyrethrins is a biogenic insecticide, that can be extracted from Chrysanthemum cinerariifolium[1].

Molecular Weight

372.45

Formula

C22H28O5
CAS No.
Appearance

Liquid (Density: 1.12±0.1 g/cm3)

Color

Light yellow to yellow

SMILES

COC(/C(C)=C/[C@@H]1[C@H](C1(C)C)C(O[C@@H]2C(C)=C(C(C2)=O)C/C=C\C=C)=O)=O
Structure Classification
Initial Source
Shipping

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

DMSO : 40 mg/mL (107.40 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6849 mL 13.4246 mL 26.8492 mL
5 mM 0.5370 mL 2.6849 mL 5.3698 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.

  • 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: ≥ 2.5 mg/mL (6.71 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 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.
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.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 31.27%

COA (246 KB) HNMR (284 KB) LCMS (97 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
DMSO 1 mM 2.6849 mL 13.4246 mL 26.8492 mL 67.1231 mL
5 mM 0.5370 mL 2.6849 mL 5.3698 mL 13.4246 mL
10 mM 0.2685 mL 1.3425 mL 2.6849 mL 6.7123 mL
15 mM 0.1790 mL 0.8950 mL 1.7899 mL 4.4749 mL
20 mM 0.1342 mL 0.6712 mL 1.3425 mL 3.3562 mL
25 mM 0.1074 mL 0.5370 mL 1.0740 mL 2.6849 mL
30 mM 0.0895 mL 0.4475 mL 0.8950 mL 2.2374 mL
40 mM 0.0671 mL 0.3356 mL 0.6712 mL 1.6781 mL
50 mM 0.0537 mL 0.2685 mL 0.5370 mL 1.3425 mL
60 mM 0.0447 mL 0.2237 mL 0.4475 mL 1.1187 mL
80 mM 0.0336 mL 0.1678 mL 0.3356 mL 0.8390 mL
100 mM 0.0268 mL 0.1342 mL 0.2685 mL 0.6712 mL
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Pyrethrin II 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:

Pyrethrin II121-29-9ParasiteInhibitorinhibitorinhibit

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