Isogentisin
Based on 1 Customer Validation
Isogentisin is a Monoamine oxidase inhibitor. Isogentisin reduces basal Caspase-3 activity levels. Isogentisin induces mild intracellular oxidative stress, reduces protein oxidation after prolonged incubation, and does not significantly reduce ROS generated by CSE or H2O2. Isogentisin protects cells from cigarette smoke extract-, hydrogen peroxide-, and UV-induced death through cellular interactions rather than chemical neutralization of smoke. Isogentisin can be used in research on endothelial injury.
For research use only. We do not sell to patients.
- Purity : 99.18%
- CAS No.: 491-64-5
- Formula: C14H10O5
- Molecular Weight:258.23
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Storage:
4°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocols
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
Description
IC50 & Target
[2]|
Caspase-3 |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HUVEC | IC50 |
40 μM
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Cyto-protective activity against cigarette smoke extract-mediated cell death in human umbilical vein endothelial cells (HUVEC) with IC50 of 40 µM.
Cyto-protective activity against cigarette smoke extract-mediated cell death in human umbilical vein endothelial cells (HUVEC) with IC50 of 40 µM.
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17141243 |
In Vitro
Isogentisin alone induces mild intracellular oxidative stress in HUVEC, slightly reduces CSE-induced oxidative stress, and enhances H2O2-induced oxidative stress; it slightly reduces CSE-induced protein oxidation after 6 h and strongly reduces it after 24 h[2].
Isogentisin protects HUVECs from CSE-mediated cell death with an IC50 of 40 µM[2].
Isogentisin (1-3 h before CSE; up to 4.5 h after CSE) almost completely inhibits CSE-mediated HUVEC death and retains partial protective effect[2].
Isogentisin (20 µg/mL; 30 min before 8% CSE; 1 h and 4 h after CSE) rescues the microtubule structure of HUVECs for up to 1 h after 8% CSE exposure, but this protective effect is exhausted at 4 h[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:HUVEC
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Concentration:20 µg/mL
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Incubation Time:30 min before 8% CSE; 1 h after CSE; 4 h after CSE
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Result:Isogentisin rescued microtubule structures for 1 h after CSE exposure.
In experiments analysing cells 4 h after CSE exposure, the microtubule-protecting activity of isogentisin was exhausted.
Chemical Information
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CAS No. 491-64-5
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Appearance Solid
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Molecular Weight 258.23
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Formula C14H10O5
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Color Light yellow to yellow
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SMILES
O=C1C2=C(C=C(C=C2O)O)OC3=C1C=C(C=C3)OC
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Solvent & Solubility
In Vitro:
DMSO : 50 mg/mL (193.63 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
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.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (9.68 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (9.68 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (276 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Korean - KR (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
References
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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.8725 mL | 19.3626 mL | 38.7252 mL | 96.8129 mL |
| 5 mM | 0.7745 mL | 3.8725 mL | 7.7450 mL | 19.3626 mL | |
| 10 mM | 0.3873 mL | 1.9363 mL | 3.8725 mL | 9.6813 mL | |
| 15 mM | 0.2582 mL | 1.2908 mL | 2.5817 mL | 6.4542 mL | |
| 20 mM | 0.1936 mL | 0.9681 mL | 1.9363 mL | 4.8406 mL | |
| 25 mM | 0.1549 mL | 0.7745 mL | 1.5490 mL | 3.8725 mL | |
| 30 mM | 0.1291 mL | 0.6454 mL | 1.2908 mL | 3.2271 mL | |
| 40 mM | 0.0968 mL | 0.4841 mL | 0.9681 mL | 2.4203 mL | |
| 50 mM | 0.0775 mL | 0.3873 mL | 0.7745 mL | 1.9363 mL | |
| 60 mM | 0.0645 mL | 0.3227 mL | 0.6454 mL | 1.6135 mL | |
| 80 mM | 0.0484 mL | 0.2420 mL | 0.4841 mL | 1.2102 mL | |
| 100 mM | 0.0387 mL | 0.1936 mL | 0.3873 mL | 0.9681 mL |
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