BI-671800
Based on 1 Customer Validation
BI-671800 is a highly specific and potent antagonist of chemoattractant receptor-homologous molecule on Th2 cells (DP2/CRTH2), with IC50 values of 4.5 nM and 3.7 nM for PGD2 binding to CRTH2 in hCRTH2 and mCRTH2 transfected cells, respectively. BI-671800 has potential for the treatment of poorly controlled asthma.
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- Purity: 99.36%
- CAS No.: 1093108-50-9
- 화학식: C25H26F3N5O3
- 분자량:501.50
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보관:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
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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용액&용해도
- 순도&문서
- References
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Help & FAQs
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Biological Activity
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hCRTH2 4.5 nM (IC50) |
mCRTH2 3.7 μM (IC50) |
BI-671800 (compound A) exhibits low nM potency as an antagonist of human or mouse CRTH2 in transfected cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
BI-671800 (compound A), effectively blocks edema formation and greatly reduces the inflammatory infiltrate and skin pathology observed in drug vehicle-treated animals[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:6-8-week-old age- and sex-matched BALB/c mice (mice were sensitized for 14 days, challenged intranasally)[1].
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Dosage:10-0.1 mg/kg
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Administration:Oral gavage for 4 weeks
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Result:Shows significant inhibition of AHR in mice.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 1093108-50-9
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Appearance Solid
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분자량 501.50
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화학식 C25H26F3N5O3
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Color White to off-white
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SMILES
O=C(O)CC1=C(N(C)C)N=C(CC2=CC=C(NC(C3=CC=C(C(F)(F)F)C=C3)=O)C=C2)N=C1N(C)C
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선적
Room temperature in continental US; may vary elsewhere.
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보관
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
용액&용해도
DMSO : 135 mg/mL (269.19 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 (protect from light). 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 (protect from light). 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 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.25 mg/mL (4.49 mM); Clear solution
This protocol yields a clear solution of ≥ 2.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (22.5 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.
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 (protect from light)
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.
순도&문서
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Data Sheet (272 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]. Boehme SA, et al. A small molecule CRTH2 antagonist inhibits FITC-induced allergic cutaneous inflammation. Int Immunol. 2009 Jan;21(1):81-93. [Content Brief]
[2]. Miller D, et al. A randomized study of BI 671800, a CRTH2 antagonist, as add-on therapy in poorly controlled asthma. Allergy Asthma Proc. 2017 Mar 1;38(2):157-164. [Content Brief]
[3]. Lukacs NW, et al. CRTH2 antagonism significantly ameliorates airway hyperreactivity and downregulates inflammation-induced genes in a mouse model of airway inflammation. Am J Physiol Lung Cell Mol Physiol. 2008 Nov;295(5):L767-79. [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 (protect from light). 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 |
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| DMSO | 1 mM | 1.9940 mL | 9.9701 mL | 19.9402 mL | 49.8504 mL |
| 5 mM | 0.3988 mL | 1.9940 mL | 3.9880 mL | 9.9701 mL | |
| 10 mM | 0.1994 mL | 0.9970 mL | 1.9940 mL | 4.9850 mL | |
| 15 mM | 0.1329 mL | 0.6647 mL | 1.3293 mL | 3.3234 mL | |
| 20 mM | 0.0997 mL | 0.4985 mL | 0.9970 mL | 2.4925 mL | |
| 25 mM | 0.0798 mL | 0.3988 mL | 0.7976 mL | 1.9940 mL | |
| 30 mM | 0.0665 mL | 0.3323 mL | 0.6647 mL | 1.6617 mL | |
| 40 mM | 0.0499 mL | 0.2493 mL | 0.4985 mL | 1.2463 mL | |
| 50 mM | 0.0399 mL | 0.1994 mL | 0.3988 mL | 0.9970 mL | |
| 60 mM | 0.0332 mL | 0.1662 mL | 0.3323 mL | 0.8308 mL | |
| 80 mM | 0.0249 mL | 0.1246 mL | 0.2493 mL | 0.6231 mL | |
| 100 mM | 0.0199 mL | 0.0997 mL | 0.1994 mL | 0.4985 mL |
BI-671800 Related Classifications
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