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Enalaprilat-d5 (Enalaprilat D5; MK-422 d5)

Cat No.:V72997 Purity: ≥98%
Enalaprilat-d5 is the deuterium labelled form of Enalaprilat.
Enalaprilat-d5 (Enalaprilat D5; MK-422 d5)
Enalaprilat-d5 (Enalaprilat D5; MK-422 d5) Chemical Structure CAS No.: 349554-00-3
Product category: ACE
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 Enalaprilat-d5 (Enalaprilat D5; MK-422 d5):

  • Enalaprilat Dihydrate (MK-422)
  • Enalaprilat D5 sodium salt
  • Enalaprilat-d5 maleate
  • Enalaprilat (MK-422)
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Enalaprilat-d5 is the deuterium labelled form of Enalaprilat.
Enalaprilat-d5 is the deuterium-labeled form of Enalaprilat (MK-422), which is the active diacid metabolite of the prodrug enalapril. It functions as an angiotensin-converting enzyme (ACE) inhibitor. The stable isotope labeling makes it a valuable internal standard for the quantification of enalaprilat in various bioanalytical mass spectrometry applications.
Biological Activity I Assay Protocols (From Reference)
Targets
Angiotensin-converting enzyme (ACE)
ln Vitro
As a deuterium-labeled analogue, Enalaprilat-d5 is expected to retain the ACE inhibitory activity of its non-labeled parent compound. Enalaprilat specifically blocks the conversion of angiotensin I to the vasoconstrictor angiotensin II and inhibits bradykinin degradation.
ln Vivo
Currently, no specific in vivo data is available for this deuterated compound. The non-deuterated parent enalaprilat is known to act as a vasodilator, decreasing total peripheral and renal vascular resistance, thereby lowering blood pressure in vivo.
Enzyme Assay
A typical ACE inhibition assay protocol involves incubating the test compound with ACE enzyme derived from rabbit lung or recombinant sources and a synthetic substrate like Hip-His-Leu. The reaction is performed in a borate buffer at 37degC. The product, hippuric acid, is extracted with ethyl acetate and quantified spectrophotometrically at 228 nm.
Cell Assay
Enalaprilat-d5 is used as an analytical standard and not typically employed in routine cell-based assays. General cellular uptake studies may involve HEK293 cells overexpressing organic anion transporters (OATs) to study renal active secretion. Cells are incubated with the compound, and intracellular concentrations are quantified by LC-MS/MS.
Animal Protocol
General in vivo protocols for ACE inhibitors include administering the compound to spontaneously hypertensive rats (SHRs) via oral gavage. Blood pressure is measured using tail-cuff plethysmography. For PK studies, blood samples are collected at various time points, and plasma concentrations are analyzed using LC-MS/MS with the deuterated compound as an internal standard.
ADME/Pharmacokinetics
Enalaprilat-d5 has a molecular weight of 353.43. As a deuterium-labeled compound, its pharmacokinetics are expected to be nearly identical to non-labeled enalaprilat. Enalaprilat is poorly absorbed orally and is typically administered intravenously. It is primarily excreted unchanged in the urine via glomerular filtration and active tubular secretion.
Toxicity/Toxicokinetics
Deuterium labeling does not alter toxicity profile. The parent compound, Enalaprilat, is generally well-tolerated but may cause hypotension, dizziness, and hyperkalemia in overdose. As with other ACE inhibitors, it is contraindicated in pregnancy due to the risk of fetal toxicity. No specific toxicology data is available for the d5 analog.
Additional Infomation
Enalaprilat-d5 is not a drug but a research tool. It is primarily used as an internal standard for the quantification of enalaprilat in biological samples using techniques like LC-MS/MS. This application is crucial for pharmacokinetic studies, bioequivalence testing, and therapeutic drug monitoring. No clinical trials or approved uses exist for this specific isotope-labeled product.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H19D5N2O5
Molecular Weight
353.42
Exact Mass
353.199
CAS #
349554-00-3
Related CAS #
Enalaprilat dihydrate;84680-54-6;Enalaprilat-d5 sodium;1356922-29-6;Enalaprilat;76420-72-9
PubChem CID
3691183
Appearance
White to off-white solid powder
Density
1.3±0.1 g/cm3
Boiling Point
601.0±55.0 °C at 760 mmHg
Flash Point
317.3±31.5 °C
Vapour Pressure
0.0±1.8 mmHg at 25°C
Index of Refraction
1.580
LogP
1.54
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
8
Heavy Atom Count
25
Complexity
490
Defined Atom Stereocenter Count
0
SMILES
CC(C(=O)N1CCCC1C(=O)O)NC(CCC2=CC=CC=C2)C(=O)O
InChi Key
LZFZMUMEGBBDTC-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H24N2O5/c1-12(16(21)20-11-5-8-15(20)18(24)25)19-14(17(22)23)10-9-13-6-3-2-4-7-13/h2-4,6-7,12,14-15,19H,5,8-11H2,1H3,(H,22,23)(H,24,25)
Chemical Name
1-[2-[(1-carboxy-3-phenylpropyl)amino]propanoyl]pyrrolidine-2-carboxylic acid
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)
DMSO: 100 mg/mL (282.95 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.07 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 (7.07 mM) 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; with ultrasonication.
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 (7.07 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 2.8295 mL 14.1475 mL 28.2949 mL
5 mM 0.5659 mL 2.8295 mL 5.6590 mL
10 mM 0.2829 mL 1.4147 mL 2.8295 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:

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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)
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  • 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)
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  • 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:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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  • 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.

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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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