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Guanadrel

Cat No.:V44529 Purity: ≥98%
Guanadrel is an orally bioactive spironone-type postganglionic adrenergic inhibitor that may be utilized in anti-hypertensive (blood pressure lowering) research.
Guanadrel
Guanadrel Chemical Structure CAS No.: 40580-59-4
Product category: New3
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
Other Sizes

Other Forms of Guanadrel:

  • Guanadrel Sulfate
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Guanadrel is an orally bioactive spironone-type postganglionic adrenergic inhibitor that may be utilized in anti-hypertensive (blood pressure lowering) research.
Biological Activity I Assay Protocols (From Reference)
ln Vivo
Guanadrine has low nervous system toxicity in rats and dogs (15–400 mg/kg daily, 6-52 weeks; oral gavage) [1].
Animal Protocol
Animal/Disease Models: Rats, dogs [1]
Doses: 15-400 mg/kg
Route of Administration: po (oral gavage); daily; 6-52 weeks
Experimental Results: The weight of the prostate and adrenal glands in rats increased slightly, while the weight of the kidneys diminished. Dogs' weight gain diminished in a dose-dependent manner, but liver function was normal.
ADME/Pharmacokinetics
Absorption, Distribution and Excretion
Rapidly and readily absorbed from the gastrointestinal tract.
Metabolism / Metabolites
Primarily hepatic
Biological Half-Life
10 hours
Toxicity/Toxicokinetics
Protein Binding
Low, approximately 20%
References

[1]. Guanadrel sulfate: a postganglionic sympathetic inhibitor for the treatment of mild to moderate hypertension. Pharmacotherapy. 1983 Jul-Aug;3(4):220-9. doi: 10.1002/j.1875-9114.1983.tb03257.x.

Additional Infomation
Guanadrel is a spiroketal resulting from the formal condensation of the keto group of cyclohexanone with the hydroxy groups of 1-(2,3-dihydroxypropyl)guanidine. A postganglionic adrenergic blocking agent formerly used (generally as the sulfate salt) for the management of hypertension, it has been largely superseded by other drugs less likely to cause orthostatic hypotension (dizzy spells on standing up or stretching). It has a role as an antihypertensive agent and an adrenergic antagonist. It is a member of guanidines and a spiroketal. It is a conjugate base of a guanadrel(1+).
Guanadrel is an antihypertensive agent and postganglionic adrenergic blocking agent.
See also: Guanadrel Sulfate (annotation moved to).
Drug Indication
Used to treat and control hypertension.
Mechanism of Action
Guanadrel is an adrenergic neuron inhibitor that slowly displaces norepinephrine from its storage in nerve endings. It blocks the release of norepinephrine in response to the sympathetic nerve stimulation, leading to reduced arteriolar vasoconstriction, especially the reflex increase in sympathetic tone that occurs with a change in position.
Pharmacodynamics
High blood pressure adds to the work load of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled. Guanadrel works by controlling nerve impulses along certain nerve pathways. As a result, it relaxes the blood vessels so that blood passes through them more easily. This helps to lower blood pressure.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C10H19N3O2
Molecular Weight
213.27676
Exact Mass
213.148
CAS #
40580-59-4
Related CAS #
22195-34-2 (sulfate[2:1])
PubChem CID
38521
Appearance
Colorless to light yellow ointment
Density
1.39g/cm3
Boiling Point
387.9ºC at 760 mmHg
Melting Point
213.5-215ºC
Flash Point
188.4ºC
Index of Refraction
1.618
LogP
1.736
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
2
Heavy Atom Count
15
Complexity
245
Defined Atom Stereocenter Count
0
SMILES
N/C(=N/CC1COC2(CCCCC2)O1)/N
InChi Key
HPBNRIOWIXYZFK-UHFFFAOYSA-N
InChi Code
InChI=1S/C10H19N3O2/c11-9(12)13-6-8-7-14-10(15-8)4-2-1-3-5-10/h8H,1-7H2,(H4,11,12,13)
Chemical Name
2-(1,4-dioxaspiro[4.5]decan-3-ylmethyl)guanidine
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~50 mg/mL (~234.43 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (11.72 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (11.72 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (11.72 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.6887 mL 23.4434 mL 46.8867 mL
5 mM 0.9377 mL 4.6887 mL 9.3773 mL
10 mM 0.4689 mL 2.3443 mL 4.6887 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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