2. GPCR/G Protein Neuronal Signaling
  3. Adrenergic Receptor
  4. L748337

L748337 is a potent β3-adrenergic receptor antagonist and displays selectivity over β1 and β2 receptors. The Ki values of L748337 for β3-, β2- and β1-adrenoceptors are 4.0 nM, 204 nM and 390 nM, respectively. L748337 couples predominantly to Gi to activate MAPK signaling and increases phosphorylation of Erk1/2 with pEC50 value of 11.6. L748337 can be used for the research of cancer, nonalcoholic fatty liver disease (NAFLD), and cardiovascular related diseases.

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

L748337 Chemical Structure

L748337 Chemical Structure

CAS No. : 244192-94-7

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5 mg USD 180 In-stock
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Based on 1 publication(s) in Google Scholar

L748337 Related Antibodies

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Description

L748337 is a potent β3-adrenergic receptor antagonist and displays selectivity over β1 and β2 receptors. The Ki values of L748337 for β3-, β2- and β1-adrenoceptors are 4.0 nM, 204 nM and 390 nM, respectively[1]. L748337 couples predominantly to Gi to activate MAPK signaling and increases phosphorylation of Erk1/2 with pEC50 value of 11.6[2]. L748337 can be used for the research of cancer, nonalcoholic fatty liver disease (NAFLD), and cardiovascular related diseases[1][2][3].

IC50 & Target[1]

Beta-3 adrenergic receptor

4 nM (Ki)

Beta-2 adrenergic receptor

204 nM (Ki)

Beta-1 adrenergic receptor

390 nM (Ki)

In Vitro

L748337 (1 μM) inhibits iNOS expression in B16F10 cells[1].

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

L748337 Related Antibodies
In Vivo

L-748337 (intraperitoneal injection; 5 mg/kg; beginning 10 days until D18) decreases the growth of melanoma induced by B16F10 cell inoculation and decreases tumor vasculature in mice[1].

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

Animal Model: Fifty male C57BL/6 J mice (8 weeks of age) bearing syngeneic B16F10 cell[1]
Dosage: 5 mg/kg
Administration: Beginning 10 days until D18
Result: Exhibited anti-cancer effects.
Molecular Weight

497.61

Formula

C26H31N3O5S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC(NCC1=CC=CC(OC[C@@H](O)CNCCC2=CC=C(NS(=O)(C3=CC=CC=C3)=O)C=C2)=C1)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (200.96 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Ethanol : 30 mg/mL (60.29 mM; Need ultrasonic and warming)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.0096 mL 10.0480 mL 20.0961 mL
5 mM 0.4019 mL 2.0096 mL 4.0192 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 (sealed storage, away from moisture). 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 (5.02 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.
  • Protocol 2

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

    Solubility: ≥ 2.5 mg/mL (5.02 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.
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).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

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: 99.67%

SDS (251 KB)

COA (243 KB) HNMR (140 KB) RP-HPLC (138 KB) LCMS (305 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 (sealed storage, away from moisture). 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
Ethanol / DMSO 1 mM 2.0096 mL 10.0480 mL 20.0961 mL 50.2401 mL
5 mM 0.4019 mL 2.0096 mL 4.0192 mL 10.0480 mL
10 mM 0.2010 mL 1.0048 mL 2.0096 mL 5.0240 mL
15 mM 0.1340 mL 0.6699 mL 1.3397 mL 3.3493 mL
20 mM 0.1005 mL 0.5024 mL 1.0048 mL 2.5120 mL
25 mM 0.0804 mL 0.4019 mL 0.8038 mL 2.0096 mL
30 mM 0.0670 mL 0.3349 mL 0.6699 mL 1.6747 mL
40 mM 0.0502 mL 0.2512 mL 0.5024 mL 1.2560 mL
50 mM 0.0402 mL 0.2010 mL 0.4019 mL 1.0048 mL
60 mM 0.0335 mL 0.1675 mL 0.3349 mL 0.8373 mL
DMSO 80 mM 0.0251 mL 0.1256 mL 0.2512 mL 0.6280 mL
100 mM 0.0201 mL 0.1005 mL 0.2010 mL 0.5024 mL
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L748337 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:

L748337244192-94-7L 748337L-748337Adrenergic ReceptorBeta Receptorβ3-adrenergic receptorcancerB16F10 celltumor vasculaturemelanomaInhibitorinhibitorinhibit

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