Laropiprant
Based on 1 Customer Validation
Laropiprant is a potent and selective DP receptor antagonist with Ki values of 0.57 nM and 2.95 nM for DP receptor and TP Receptor, respectively.
For research use only. We do not sell to patients.
- Purity: 99.34%
- CAS No.: 571170-77-9
- Formula: C21H19ClFNO4S
- Molecular Weight:435.90
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
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DP 0.57 nM (Ki) |
TP Receptor 2.95 nM (Ki) |
Laropiprant (0.01-1000 μM; 10 mins; HEK293 cells) is an inverse agonist of DP1 cAMP signaling and reduces DP1 cAMP signaling below basal levels[1].
Laropiprant (1 μM; 0-24 h; HEK293 cells) is a pharmacochaperone in promoting DP1 cell surface expression[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Pharmacokinetic Analysis in Male Sprague-Dawley rats[3]
| Route | Dose (mg/kg) | AUC0-∞ (μM·hr) | Clp (mL/min/kg) | Vdss (L/kg) | T1/2 (hr) |
| PO | 1 | 22.7 | 1.9 | 0.7 | 7.4 |
| PO | 5 | 96.0 | 2.1 | 0.9 | 7.6 |
| Route | Dose (mg/kg) | AUC0-∞ (μM·hr) | Cmax (μM) | Tmax (hr) | F(%) |
| IV | 5 | 52.6 | 15.6 | 1.2 | / |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 571170-77-9
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Appearance Solid
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Molecular Weight 435.90
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Formula C21H19ClFNO4S
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Color White to off-white
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SMILES
O=S(C1=CC(F)=CC2=C1N(C3=C2CC[C@@H]3CC(O)=O)CC4=CC=C(Cl)C=C4)(C)=O
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Synonyms
MK-0524
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Solvent & Solubility
DMSO : ≥ 100 mg/mL (229.41 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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: ≥ 2.5 mg/mL (5.74 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.
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.
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.
Protocol
Vena8Fluoro+ Biochips are coated with collagen (200 µg/mL) at 4°C overnight and thereafter blocked with bovine serum albumin (10 µg/mL) for 30 minutes at room temperature followed by washing steps. Whole blood collected in sodium citrate is incubated with 3, 3-dihexyloxacarbocyanine iodide (1 µM) in the dark for 10 minutes. PGD2 (30 nM), BW245c (3 nM) are added 10 min before the start of perfusion, and the DP antagonist BWA868c or Laropiprant (1 µM) are added 10 min before the agonists. In another set of experiments whole blood is treated with niacin (3 mM), acetylsalicylic acid (1 mM) or Laropiprant (1 µM and 10 µM) for 30 min. CaCl2 at a final concentration of 1 mM is added 2 minutes before the perfusion over the collagen-coated chip. Perfusion is carried out at a shear rate of 30 dynes cm2. Thrombus formation is recorded. Computerized image analysis is performed by DucoCell analysis software, where the area covered by the thrombus is calculated. Data are expressed as percent of area covered in a control sample[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (283 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[2]. Sturino CF, et, al. Discovery of a potent and selective prostaglandin D2 receptor antagonist, [(3R)-4-(4-chloro-benzyl)-7-fluoro-5-(methylsulfonyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl]-acetic acid (MK-0524). J Med Chem. 2007 Feb 22;50(4):794-806. [Content Brief]
[3]. Chang SW, et, al. The pharmacokinetics and disposition of MK-0524, a Prosglandin D2 Receptor 1 antagonist, in rats, dogs and monkeys. Xenobiotica. 2007 May;37(5):514-33. [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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.2941 mL | 11.4705 mL | 22.9410 mL | 57.3526 mL |
| 5 mM | 0.4588 mL | 2.2941 mL | 4.5882 mL | 11.4705 mL | |
| 10 mM | 0.2294 mL | 1.1471 mL | 2.2941 mL | 5.7353 mL | |
| 15 mM | 0.1529 mL | 0.7647 mL | 1.5294 mL | 3.8235 mL | |
| 20 mM | 0.1147 mL | 0.5735 mL | 1.1471 mL | 2.8676 mL | |
| 25 mM | 0.0918 mL | 0.4588 mL | 0.9176 mL | 2.2941 mL | |
| 30 mM | 0.0765 mL | 0.3824 mL | 0.7647 mL | 1.9118 mL | |
| 40 mM | 0.0574 mL | 0.2868 mL | 0.5735 mL | 1.4338 mL | |
| 50 mM | 0.0459 mL | 0.2294 mL | 0.4588 mL | 1.1471 mL | |
| 60 mM | 0.0382 mL | 0.1912 mL | 0.3824 mL | 0.9559 mL | |
| 80 mM | 0.0287 mL | 0.1434 mL | 0.2868 mL | 0.7169 mL | |
| 100 mM | 0.0229 mL | 0.1147 mL | 0.2294 mL | 0.5735 mL |
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