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Benazeprilat (CGS 14831)

Alias: Benazeprilat CGS 14831 CGS-14831 CGS14831
Cat No.:V8294 Purity: ≥98%
Benazeprilat (formerly known as CGS-14831), the active metabolite of the benazepril, is a potent inhibitor of angiotensin converting enzyme (ACE) with IC50 of 0.28 nM in plasma from dog.
Benazeprilat (CGS 14831)
Benazeprilat (CGS 14831) Chemical Structure CAS No.: 86541-78-8
Product category: Endogenous Metabolite
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
250mg
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Other Forms of Benazeprilat (CGS 14831):

  • Benazeprilat-d5 (Benazeprilat EP Impurity C-d5)
Official Supplier of:
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Top Publications Citing lnvivochem Products
Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Benazeprilat (formerly known as CGS-14831), the active metabolite of the benazepril, is a potent inhibitor of angiotensin converting enzyme (ACE) with IC50 of 0.28 nM in plasma from dog.

Biological Activity I Assay Protocols (From Reference)
ln Vivo
A good antihypertensive effect can be achieved by combining benazeprilat (10 mg/kg, intravenous injection) with amlodipine (0.5 mg/kg, intravenous injection) [2]. Oral benazepril (0.7 mg/kg) dramatically alters the kinetics of the systemic RAAS peptide, leading to a marked reduction in AII and ALD and an increase in PRA and AI [3].
Animal Protocol
Animal/Disease Models: Male SHR (14-16 weeks old, 250-350 grams) [2].
Doses: 10 mg/kg
Route of Administration: IV; one time/day for 2 days
Experimental Results: A hypotensive effect occurs.

Animal/Disease Models: Beagle dog (12.0-19.5 kg) [3].
Doses: 0.7 mg/kg
Route of Administration: Orally, one time/day for 5 days.
Experimental Results: Effects of systemic RAAS peptides.
References

[1]. Barrios V, Antihypertensive and organ-protective effects of benazepril. Expert Rev Cardiovasc Ther. 2010 Dec;8(12):1653-71.

[2]. Bazil MK, Hemodynamic effects of amlodipine and benazeprilat in spontaneously hypertensive rats. J Cardiovasc Pharmacol. 1993 Mar;21(3):405-11.

[3]. Mochel JP, Capturing the dynamics of systemic Renin-Angiotensin-Aldosterone System (RAAS) peptides heightens the understanding of the effect of benazepril in dogs. J Vet Pharmacol Ther. 2013 Apr;36(2):174-80.

Additional Infomation
Benazeprilat is a benzazepine that is 1,3,4,5-tetrahydro-2H-1-benzazepin-2-one in which the hydrogen attached to the nitrogen is replaced by a carboxy methyl group and in which the 3-pro-S hydrogen is replaced by the amino group of (2S)-2-amino-4-phenylbutanoic acid. An angiotensin-converting enzyme inhibitor, it is used as its monoester prodrug benazepril in the treatment of hypertension and heart failure. It has a role as an EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor. It is a benzazepine, a dicarboxylic acid and a lactam.
Benazeprilat is an Angiotensin Converting Enzyme Inhibitor. The mechanism of action of benazeprilat is as an Angiotensin-converting Enzyme Inhibitor. The physiologic effect of benazeprilat is by means of Decreased Blood Pressure.
Benazeprilat is the active metabolite of benazepril, a carboxyl-containing angiotensin-converting enzyme (ACE) inhibitor with antihypertensive activity. Once the prodrug benazepril is metabolized to benazeprilat in the liver, benazeprilat competitively binds to and inhibits ACE, thereby blocking the conversion of angiotensin I to angiotensin II. This prevents the potent vasoconstrictive actions of angiotensin II, resulting in vasodilation. Benazeprilat also decreases angiotensin II-induced aldosterone secretion by the adrenal cortex, which leads to an increase in sodium excretion and subsequently increases water outflow.
See also: Benazepril Hydrochloride (active moiety of).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H24N2O5
Molecular Weight
396.443
Exact Mass
396.169
CAS #
86541-78-8
Related CAS #
Benazeprilat-d5;1279033-05-4
PubChem CID
5463984
Appearance
White to off-white solid powder
Density
1.34 g/cm3
Boiling Point
711.3ºC at 760 mmHg
Melting Point
270-272ºC
Flash Point
384ºC
Index of Refraction
1.643
LogP
2.55
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
8
Heavy Atom Count
29
Complexity
590
Defined Atom Stereocenter Count
2
SMILES
C(N1C(=O)[C@@H](N[C@H](C(=O)O)CCC2C=CC=CC=2)CCC2C=CC=CC1=2)C(=O)O
InChi Key
MADRIHWFJGRSBP-ROUUACIJSA-N
InChi Code
InChI=1S/C22H24N2O5/c25-20(26)14-24-19-9-5-4-8-16(19)11-13-17(21(24)27)23-18(22(28)29)12-10-15-6-2-1-3-7-15/h1-9,17-18,23H,10-14H2,(H,25,26)(H,28,29)/t17-,18-/m0/s1
Chemical Name
(2S)-2-[[(3S)-1-(carboxymethyl)-2-oxo-4,5-dihydro-3H-1-benzazepin-3-yl]amino]-4-phenylbutanoic acid
Synonyms
Benazeprilat CGS 14831 CGS-14831 CGS14831
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

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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.5224 mL 12.6122 mL 25.2245 mL
5 mM 0.5045 mL 2.5224 mL 5.0449 mL
10 mM 0.2522 mL 1.2612 mL 2.5224 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.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT00835367 COMPLETEDWITH RESULTS Drug: Amlodipine-benazepril 10 mg-20 mg capsules
Drug: Lotrel® 10 mg-20 mg capsule
Healthy Teva Pharmaceuticals USA 2004-03 Phase 1
NCT00836576 COMPLETED Drug: Benazepril HCl 40 mg Tablets
Drug: Lotensin® 40 mg Tablets
Healthy Teva Pharmaceuticals USA 2001-02 Phase 1
NCT00836537 COMPLETED Drug: Benazepril HCl 40 mg Tablets
Drug: Lotensin® 40 mg Tablets
Healthy Teva Pharmaceuticals USA 2001-03 Phase 1
NCT00834977 COMPLETEDWITH RESULTS Drug: Amlodipine-benazepril 10 mg-20 mg capsules
Drug: Lotrel® 10 mg-20 mg capsule
Healthy Teva Pharmaceuticals USA 2004-04 Phase 1
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