1. Metabolic Enzyme/Protease Neuronal Signaling
  2. Monoamine Oxidase Cytochrome P450
  3. LY43578

LY43578 is an orally active aromatase inhibitor. LY43578 inhibits P-450-dependent p-nitroanisole O-demethylation and ethylmorphine N-demethylation in hepatic microsomes isolated from rat, with the IC50 of 0.3 and 5 μΜ, respectively. LY43578 can be used for neurological disorder study.

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LY43578 Chemical Structure

LY43578 Chemical Structure

CAS No. : 26766-35-8

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5 mg USD 60 In-stock
10 mg USD 95 In-stock
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Description

LY43578 is an orally active aromatase inhibitor. LY43578 inhibits P-450-dependent p-nitroanisole O-demethylation and ethylmorphine N-demethylation in hepatic microsomes isolated from rat, with the IC50 of 0.3 and 5 μΜ, respectively. LY43578 can be used for neurological disorder study[1][2].

Cellular Effect
Cell Line Type Value Description References
L6 IC50
0.22 μM
Compound: 3
Antitrypanosomal activity against trypomastigotes of Trypanosoma cruzi Tulahuen expressing the beta- galactosidase gene infected rat L6 cells after 96 hrs
Antitrypanosomal activity against trypomastigotes of Trypanosoma cruzi Tulahuen expressing the beta- galactosidase gene infected rat L6 cells after 96 hrs
[PMID: 22536986]
L6 IC50
47.2 μM
Compound: 3
Cytotoxicity against rat L6 cells after 72 hrs by Alamar Blue assay
Cytotoxicity against rat L6 cells after 72 hrs by Alamar Blue assay
[PMID: 22536986]
Molecular Weight

331.20

Formula

C17H12Cl2N2O

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

OC(C1=CC=C(C=C1)Cl)(C2=CN=CN=C2)C3=CC=C(C=C3)Cl

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 (301.93 mM; Need ultrasonic; 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 3.0193 mL 15.0966 mL 30.1932 mL
5 mM 0.6039 mL 3.0193 mL 6.0386 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)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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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    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (7.55 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (7.55 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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(per animal)

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Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
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+
%
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
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 3.0193 mL 15.0966 mL 30.1932 mL 75.4831 mL
5 mM 0.6039 mL 3.0193 mL 6.0386 mL 15.0966 mL
10 mM 0.3019 mL 1.5097 mL 3.0193 mL 7.5483 mL
15 mM 0.2013 mL 1.0064 mL 2.0129 mL 5.0322 mL
20 mM 0.1510 mL 0.7548 mL 1.5097 mL 3.7742 mL
25 mM 0.1208 mL 0.6039 mL 1.2077 mL 3.0193 mL
30 mM 0.1006 mL 0.5032 mL 1.0064 mL 2.5161 mL
40 mM 0.0755 mL 0.3774 mL 0.7548 mL 1.8871 mL
50 mM 0.0604 mL 0.3019 mL 0.6039 mL 1.5097 mL
60 mM 0.0503 mL 0.2516 mL 0.5032 mL 1.2581 mL
80 mM 0.0377 mL 0.1887 mL 0.3774 mL 0.9435 mL
100 mM 0.0302 mL 0.1510 mL 0.3019 mL 0.7548 mL
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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.

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LY43578
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