2. GPCR/G Protein Neuronal Signaling
  3. Neuropeptide Y Receptor
  4. L 152804

L 152804 is an orally active and selective neuropeptide Y Y5 receptor (NPY5-R) antagonist, with a Ki of 26 nM for hY5. L 152804 causes weight loss in diet-induced obese mice by modulating food intake and energy expenditure.

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L 152804 Chemical Structure

L 152804 Chemical Structure

CAS No. : 6508-43-6

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Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 99 In-stock
Solution
10 mM * 1 mL in DMSO USD 99 In-stock
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10 mg USD 150 In-stock
50 mg USD 380 In-stock
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Based on 1 publication(s) in Google Scholar

L 152804 Related Antibodies

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  • Purity & Documentation

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Description

L 152804 is an orally active and selective neuropeptide Y Y5 receptor (NPY5-R) antagonist, with a Ki of 26 nM for hY5. L 152804 causes weight loss in diet-induced obese mice by modulating food intake and energy expenditure[1][2].

IC50 & Target

Ki: 26 nM (NPY5-R)[1].
In Vitro

L 152804 displays > 300-fold selectivity over hY1, hY2, and hY4 receptors[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

L 152804 Related Antibodies
Molecular Weight

366.45

Formula

C23H26O4
CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=C1C2=C(CC(C)(C)C1)OC3=CC=CC=C3C2C4C(CC(C)(C)CC4=O)=O
Shipping

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

DMSO : ≥ 125 mg/mL (341.11 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.7289 mL 13.6444 mL 27.2889 mL
5 mM 0.5458 mL 2.7289 mL 5.4578 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • 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: ≥ 2.08 mg/mL (5.68 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (5.68 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
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: 99.48%

COA (257 KB) LCMS (268 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.7289 mL 13.6444 mL 27.2889 mL 68.2221 mL
5 mM 0.5458 mL 2.7289 mL 5.4578 mL 13.6444 mL
10 mM 0.2729 mL 1.3644 mL 2.7289 mL 6.8222 mL
15 mM 0.1819 mL 0.9096 mL 1.8193 mL 4.5481 mL
20 mM 0.1364 mL 0.6822 mL 1.3644 mL 3.4111 mL
25 mM 0.1092 mL 0.5458 mL 1.0916 mL 2.7289 mL
30 mM 0.0910 mL 0.4548 mL 0.9096 mL 2.2741 mL
40 mM 0.0682 mL 0.3411 mL 0.6822 mL 1.7056 mL
50 mM 0.0546 mL 0.2729 mL 0.5458 mL 1.3644 mL
60 mM 0.0455 mL 0.2274 mL 0.4548 mL 1.1370 mL
80 mM 0.0341 mL 0.1706 mL 0.3411 mL 0.8528 mL
100 mM 0.0273 mL 0.1364 mL 0.2729 mL 0.6822 mL
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L 152804 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:

L 1528046508-43-6L152804L-152804Neuropeptide Y ReceptorNPY receptorInhibitorinhibitorinhibit

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