Pactimibe
Based on 1 Customer Validation
Pactimibe (CS-505 free base) is a dual ACAT1/2 inhibitor with IC50s of 4.9 μM and 3.0 μM, respectively. Pactimibe (CS-505 free base) inhibits ACAT with IC50s of 2.0 μM, 2.7 μM, 4.7 μM in the liver, macrophages and THP-1 cells, respectively. Pactimibe (CS-505 free base) noncompetitively inhibits oleoyl-CoA with a Ki value of 5.6 μM. Moreover, Pactimibe (CS-505 free base) obviously inhibits cholesteryl ester formation with an IC50 of 6.7 μM. Pactimibe (CS-505 free base) possesses anti-atherosclerotic potential with lowering plasma cholesterol activity.
For research use only. We do not sell to patients.
- Purity: 99.98%
- CAS No.: 189198-30-9
- Formula: C25H40N2O3
- Molecular Weight:416.60
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
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Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
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ACAT1 4.9 μM (IC50) |
ACAT2 3.0 μM (IC50) |
ACAT 2 μM (IC50, in the liver) |
ACAT 2.7 μM (IC50, in macrophages) |
ACAT 4.7 μM (IC50, in THP-1 cells) |
oleoyl-CoA 5.6 μM (Ki) |
cholesteryl ester formation 6.7 μM (IC50) |
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Cell Line
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Type | Value | Description | References |
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| THP-1 | IC50 |
0.3 μM
Compound: 2, pactimibe
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Inhibition of ACAT-mediated esterified cholesterol accumulation in human THP1 cells exposed to acetyl-LDL after differentiation assessed as effect on foam cell formation
Inhibition of ACAT-mediated esterified cholesterol accumulation in human THP1 cells exposed to acetyl-LDL after differentiation assessed as effect on foam cell formation
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[PMID: 18620381] |
| THP-1 | IC50 |
1.8 μM
Compound: 2, pactimibe
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Inhibition of ACAT-mediated esterified cholesterol accumulation in human THP1 cells exposed to acetyl-LDL during differentiation assessed as effect on foam cell formation
Inhibition of ACAT-mediated esterified cholesterol accumulation in human THP1 cells exposed to acetyl-LDL during differentiation assessed as effect on foam cell formation
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[PMID: 18620381] |
| THP-1 | IC50 |
2 μM
Compound: 94
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Inhibition of accumulation of esterified cholesterol in human THP-1 cells
Inhibition of accumulation of esterified cholesterol in human THP-1 cells
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[PMID: 36473091] |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male C57BL/6J ApoE−/− mice aged 8-week-old[3]
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Dosage:60 and 200 mg/kg/day
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Administration:Oral gavage; twice a day; 12 weeks
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Result:Decreased plasma cholesterol levels by 39% and 74% at the administration of 60 and 200 mg/kg/day
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 189198-30-9
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Appearance Solid
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Molecular Weight 416.60
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Formula C25H40N2O3
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Color White to off-white
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SMILES
O=C(O)CC1=C(C)C2=C(N(CCCCCCCC)CC2)C(NC(C(C)(C)C)=O)=C1C
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Synonyms
CS-505 free base
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
DMSO : 200 mg/mL (480.08 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 (sealed storage, away from moisture). 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 (sealed storage, away from moisture). 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)
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: ≥ 5 mg/mL (12.00 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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.
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 (sealed storage, away from moisture)
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 (273 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. Naoki Terasaka, et al. ACAT inhibitor pactimibe sulfate (CS-505) reduces and stabilizes atherosclerotic lesions by cholesterol-lowering and direct effects in apolipoprotein E-deficient mice. Atherosclerosis. 2007 Feb;190(2):239-47. [Content Brief]
[2]. Ken Kitayama, et al. Importance of acyl-coenzyme A:cholesterol acyltransferase 1/2 dual inhibition for anti-atherosclerotic potency of pactimibe. Eur J Pharmacol. 2006 Jul 1;540(1-3):121-30. [Content Brief]
[3]. Yasunobu Yoshinaka, et al. A selective ACAT-1 inhibitor, K-604, stimulates collagen production in cultured smooth muscle cells and alters plaque phenotype in apolipoprotein E-knockout mice. Atherosclerosis. 2010 Nov;213(1):85-91. [Content Brief]
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 (sealed storage, away from moisture). 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 | 2.4004 mL | 12.0019 mL | 24.0038 mL | 60.0096 mL |
| 5 mM | 0.4801 mL | 2.4004 mL | 4.8008 mL | 12.0019 mL | |
| 10 mM | 0.2400 mL | 1.2002 mL | 2.4004 mL | 6.0010 mL | |
| 15 mM | 0.1600 mL | 0.8001 mL | 1.6003 mL | 4.0006 mL | |
| 20 mM | 0.1200 mL | 0.6001 mL | 1.2002 mL | 3.0005 mL | |
| 25 mM | 0.0960 mL | 0.4801 mL | 0.9602 mL | 2.4004 mL | |
| 30 mM | 0.0800 mL | 0.4001 mL | 0.8001 mL | 2.0003 mL | |
| 40 mM | 0.0600 mL | 0.3000 mL | 0.6001 mL | 1.5002 mL | |
| 50 mM | 0.0480 mL | 0.2400 mL | 0.4801 mL | 1.2002 mL | |
| 60 mM | 0.0400 mL | 0.2000 mL | 0.4001 mL | 1.0002 mL | |
| 80 mM | 0.0300 mL | 0.1500 mL | 0.3000 mL | 0.7501 mL | |
| 100 mM | 0.0240 mL | 0.1200 mL | 0.2400 mL | 0.6001 mL |
Pactimibe Related Classifications
HY-100401 Related Classifications
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