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> Norepinephrine (hydrochloride) [329-56-6]

Norepinephrine (hydrochloride) [329-56-6]

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Cat# HY-13715A-500mg

Size : 500mg

Brand : MedChemExpress


Description

Norepinephrine (Levarterenol; L-Noradrenaline) hydrochloride is a potent adrenergic receptor (AR) agonist. Norepinephrine activates α1, α2, β1 receptors[1][2][3][4].

IC50 & Target[1][2]

α1-adrenergic receptor

 

α2-adrenergic receptor

 

Beta-1 adrenergic receptor

 

Microbial Metabolite

 

Human Endogenous Metabolite

 

In Vitro

Norepinephrine (Levarterenol; L-Noradrenaline) hydrochloride is generally considered to be a β1-subtype selective adrenergic agonist over β2-adrenoceptor. Norepinephrine(NE) hydrochloride also has direct activity at the β2-adrenoceptor in higher concentrations[2].
Adipocytes from the inguinal fat pad (iWA) or the interscapular fat pad (BA) are isolated from neonatal wild-type C57BL/6J mice and cultured. To examine the effect of activating AT2 upon β-adrenergic signaling, cAMP production is first assessed in response to Norepinephrine (NE, 10 μM) with or without CGP (10 nM) co-treatment.
Norepinephrine (NE) increases cAMP as expected in iWA, and CGP does not alter this effect
Norepinephrine (NE) is also known to induce lipolysis, and liberated fatty acids are required to functionally activate UCP1 protein and to stimulate heat production. CREB phosphorylation at Ser133 is increased after Norepinephrine (NE) treatment and significantly attenuated with CGP co-treatment in mouse iWA[3].

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

Norepinephrine hydrochloride Related Antibodies
In Vivo

Note:
Please do not refer to only one article to determine the experimental conditions. It is recommended to determine the optimal experimental conditions (animal strain, age, dosage, frequency and cycle, detection time and indicators, etc.) through preliminary experiments before the formal experiment.

Norepinephrine hydrochloride can be used to induce cardiomyopathy[5][6]
Induced Cardiomyopathy Model[5][6]
Background
Norepinephrine hydrochloride is a potent growth factor for cardiomyocytes. Long-term infusion of subhyperbaric doses of Norepinephrine hydrochloride in animals can cause increases in myocardial mass and left ventricular wall thickness. Norepinephrine hydrochloride activates the Raf-1 kinase/MAP kinase cascade through α1- and β-adrenergic stimulation, and signaling pathways from both receptors synergistically induce cardiomyocyte hypertrophy.
Specific Modeling Methods
Rat: Spragues-Dawley rats • adult (6 months old) • male Administration: Continuously injected via an osmotic minipump • 100 μg/kg/h or 200 μg/kg/h (Norepinephrine)
Modeling Indicators
Molecular changes: Left ventricular Dnmt activity ↑; ROS generation ↑; lactate dehydrogenase release ↑; dystrophin expression ↑; FHL2 protein expression ↓
Gene Expression: Expression of Dnmt1, 3a, and 3b ↑; mRNA expression of fetal genes ANP, BNP, and βMHC in left ventricle ↑
Phenotypic observation: Myocardial infarction area ↑; blood pressure continues to rise; left ventricular mass ↑; left ventricular development pressure ↓; cardiac contractility ↓. Cardiac hypertrophy.
Opposite Product(s): 5-Aza-2’-deoxycytidine (HY-A0004), Prazosin (HY-B0193), Propranolol (HY-B0573B)

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

205.64

Formula

C8H12ClNO3
CAS No.
Appearance

Solid

Color

Off-white to yellow

SMILES

OC1=CC=C([C@@H](O)CN)C=C1O.Cl
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, stored under nitrogen, away from moisture

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

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (486.29 mM; Need ultrasonic)

DMSO : 50 mg/mL (243.14 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 4.8629 mL 24.3143 mL 48.6287 mL
5 mM 0.9726 mL 4.8629 mL 9.7257 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 (stored under nitrogen, 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.

* 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.

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 (12.16 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 (12.16 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: 33.33 mg/mL (162.08 mM); Clear solution; Need ultrasonic

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
References

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