Size | Price | Stock | Qty |
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50mg |
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100mg |
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250mg |
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500mg |
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Other Sizes |
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EHNA HCl, the hydrochloride salt of EHNA, is a novel and potent inhibitor of adenosine deaminase, also an inhibitor of cGMP-stimulated phosphodiesterase (PDE2) with IC50 of 0.8 - 4 μM.
ln Vitro |
While having a significantly lesser inhibitory effect on unstimulated PDE2 activity, EHNA totally removes cyclic GMP's capacity to trigger PDE2 activity [2]. The Hill plot is almost in accord, and EHNA shows typical Michael kinetic inhibition of cyclic GMP-stimulated PDE2 activity [2]. In fibroblasts, EHNA raises mitochondrial dATP levels and inhibits dAdo breakdown [3].
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References |
[1]. Podzuweit T, et al. Isozyme selective inhibition of cGMP-stimulated cyclic nucleotide phosphodiesterases by erythro-9-(2-hydroxy-3-nonyl) adenine.Cell Signal. 1995 Sep;7(7):733-8.
[2]. Michie AM, et al. Rapid regulation of PDE-2 and PDE-4 cyclic AMP phosphodiesterase activity following ligation of the T cell antigen receptor on thymocytes: analysis using the selective inhibitors erythro-9-(2-hydroxy-3-nonyl)-adenine (EHNA) and rolipram. [3]. Blázquez-Bermejo C, et al. Increased dNTP pools rescue mtDNA depletion in human POLG-deficient fibroblasts. FASEB J. 2019 Jun;33(6):7168-7179. |
Molecular Formula |
C14H23N5O.HCL
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Molecular Weight |
313.82626
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CAS # |
58337-38-5
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
Cl.CCCCCC[C@@H](N1C=NC2=C(N=CN=C12)N)[C@@H](O)C
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HS Tariff Code |
2934.99.9001
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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, avoid exposure to moisture. |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
H2O : ~100 mg/mL (~318.64 mM)
DMSO : ~83.33 mg/mL (~265.53 mM) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.08 mg/mL (6.63 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 20.8 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: ≥ 2.08 mg/mL (6.63 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 20.8 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. View More
Solubility in Formulation 3: ≥ 2.08 mg/mL (6.63 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 3.1864 mL | 15.9322 mL | 31.8644 mL | |
5 mM | 0.6373 mL | 3.1864 mL | 6.3729 mL | |
10 mM | 0.3186 mL | 1.5932 mL | 3.1864 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.
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.