1. Metabolic Enzyme/Protease
  2. Acyltransferase
  3. Pactimibe sulfate

Pactimibe sulfate  (Synonyms: CS-505)

Cat. No.: HY-100401A Purity: ≥98.0%
SDS COA Handling Instructions

Pactimibe sulfate (CS-505) is a dual ACAT1/2 inhibitor with IC50s of 4.9 μM and 3.0 μM, respectively. Pactimibe sulfate (CS-505) inhibits ACAT with IC50s of 2.0 μM, 2.7 μM, 4.7 μM in the liver, macrophages and THP-1 cells, respectively. Pactimibe sulfate (CS-505) noncompetitively inhibits oleoyl-CoA with a Ki value of 5.6 μM. Moreover, Pactimibe sulfate (CS-505) obviously inhibits cholesteryl ester formation with an IC50 of 6.7 μM. Pactimibe sulfate (CS-505) possesses anti-atherosclerotic potential with lowering plasma cholesterol activity.

For research use only. We do not sell to patients.

Pactimibe sulfate Chemical Structure

Pactimibe sulfate Chemical Structure

CAS No. : 608510-47-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 461 In-stock
Solution
10 mM * 1 mL in DMSO USD 461 In-stock
Solid
5 mg USD 450 In-stock
10 mg USD 800 In-stock
25 mg USD 1650 In-stock
50 mg USD 2550 In-stock
100 mg USD 3800 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Based on 1 publication(s) in Google Scholar

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Description

Pactimibe sulfate (CS-505) is a dual ACAT1/2 inhibitor with IC50s of 4.9 μM and 3.0 μM, respectively. Pactimibe sulfate (CS-505) inhibits ACAT with IC50s of 2.0 μM, 2.7 μM, 4.7 μM in the liver, macrophages and THP-1 cells, respectively[1]. Pactimibe sulfate (CS-505) noncompetitively inhibits oleoyl-CoA with a Ki value of 5.6 μM. Moreover, Pactimibe sulfate (CS-505) obviously inhibits cholesteryl ester formation with an IC50 of 6.7 μM. Pactimibe sulfate (CS-505) possesses anti-atherosclerotic potential with lowering plasma cholesterol activity[2].

IC50 & Target[1][2]

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)

In Vitro

Pactimibe sulfate (CS-505) induces moderate ACAT inhibition in monocyte-derived macrophages, leading to the suppression of foam cell formation[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Pactimibe sulfate (CS-505; 60 and 200 mg/kg/day; oral gavage; twice a day; 12 weeks) induces an inhibition for ACAT-1 and ACAT-2, causing a reduction of plasma cholesterol but no influence on macrophage- or collagen-positive areas[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male C57BL/6J ApoE−/− mice aged 8-week-old[3]
Dosage: 60 and 200 mg/kg/day
Administration: Oral gavage; twice a day; 12 weeks
Result: Decreased plasma cholesterol levels by 39% and 74% at the administration of 60 and 200 mg/kg/day.
Clinical Trial
Molecular Weight

465.65

Formula

C25H40N2O3.1/2H2O4S

CAS No.
Appearance

Solid

Color

Off-white to gray

SMILES

O=C(O)CC1=C(C)C2=C(N(CCCCCCCC)CC2)C(NC(C(C)(C)C)=O)=C1C.O=S(O)(O)=O.[1/2]

Shipping

Room temperature in continental US; may vary elsewhere.

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
In Vitro: 

DMSO : 120 mg/mL (257.70 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1475 mL 10.7377 mL 21.4754 mL
5 mM 0.4295 mL 2.1475 mL 4.2951 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 6 mg/mL (12.89 mM); Clear solution

    This protocol yields a clear solution of ≥ 6 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (60.0 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 6 mg/mL (12.89 mM); Clear solution

    This protocol yields a clear solution of ≥ 6 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (60.0 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:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: 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)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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

Purity: ≥98.0%

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 (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 2.1475 mL 10.7377 mL 21.4754 mL 53.6884 mL
5 mM 0.4295 mL 2.1475 mL 4.2951 mL 10.7377 mL
10 mM 0.2148 mL 1.0738 mL 2.1475 mL 5.3688 mL
15 mM 0.1432 mL 0.7158 mL 1.4317 mL 3.5792 mL
20 mM 0.1074 mL 0.5369 mL 1.0738 mL 2.6844 mL
25 mM 0.0859 mL 0.4295 mL 0.8590 mL 2.1475 mL
30 mM 0.0716 mL 0.3579 mL 0.7158 mL 1.7896 mL
40 mM 0.0537 mL 0.2684 mL 0.5369 mL 1.3422 mL
50 mM 0.0430 mL 0.2148 mL 0.4295 mL 1.0738 mL
60 mM 0.0358 mL 0.1790 mL 0.3579 mL 0.8948 mL
80 mM 0.0268 mL 0.1342 mL 0.2684 mL 0.6711 mL
100 mM 0.0215 mL 0.1074 mL 0.2148 mL 0.5369 mL
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Pactimibe sulfate Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Pactimibe sulfate
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