CS1P1
CS1P1 is a brain-penetrant and selective S1PR1 antagonist and PET radiotracer, with human S1PR1 IC50 values of 2.1 nM. CS1P1 binds specifically to S1PR1 to enable in vivo receptor expression quantification. CS1P1 can be used as PET radiotracer when labelled with 11C. CS1P1 can be used for the research of multiple sclerosis, neointimal hyperplasia, vascular inflammation.
For research use only. We do not sell to patients.
- CAS No.: 1246526-29-3
- Formula: C27H23F4N3O3
- Molecular Weight:513.48
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
IC50 & Target
[1]|
S1PR1 2.1 nM (IC50) |
In Vitro
CS1P1 (2 h) potently binds to recombinant human S1PR1 with an IC50 of 2.1 nM[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Sprague Dawley (male and female)[2]
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Dosage:0.3 mg/kg
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Administration:i.v.; single bolus
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Result:Allowed all rats to survive to scheduled euthanasia.
Caused no CS1P1-related effects on body weights, hematology parameters, clinical chemistry parameters, organ weights, or gross pathology findings at either Day 2 or Day 15.
Showed no CS1P1-related histopathology.
Chemical Information
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CAS No. 1246526-29-3
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Molecular Weight 513.48
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Formula C27H23F4N3O3
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SMILES
O=C(CCN(CC1=C(F)C=C(C2=NOC(C3=CC(C(F)(F)F)=C(C4=C(C)C=CC=C4)C=C3)=N2)C=C1)C)O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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RNA extraction experimental
By lysing cells, releasing RNA, and removing impurities such as proteins and DNA, high-purity RNA products are finally obtained. The commonly used traditional method is the guanidine isothiocyanate/phenol/chloroform method (Trizol), which is suitable for a variety of animal materials including animal tissues, microorganisms, cultured cells, etc., and most plant materials.
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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Research Protocol for Inflammation-related Diseases
The NLRP3 inflammasome is a cytosolic innate immune signaling platform that integrates priming signals and danger-signal activation to promote caspase-1 activation, maturation of IL-1β and IL-18, and gasdermin D-mediated pyroptotic cell death. The core experimental logic is to determine whether inflammatory disease phenotypes are driven by increased NLRP3 expression, ASC-containing inflammasome assembly, caspase-1 cleavage, GSDMD cleavage, and extracellular release of IL-1β/IL-18 rather than by nonspecific cell injury alone. The pathway is strongly linked to inflammation-related disease phenotypes because monosodium urate crystals activate NALP3/NLRP3 inflammasome signaling in gout-like crystal inflammation, cholesterol crystals activate NLRP3 inflammasomes in atherogenesis models, and DSS-induced intestinal inflammation has been reported to involve NLRP3 inflammasome activity. However, experimental colitis studies also show context-dependent protective effects of NLRP3 inflammasome co
Purity & Documentation
References
[1]. Qiu L, et al. Discovery of a Promising Fluorine-18 Positron Emission Tomography Radiotracer for Imaging Sphingosine-1-Phosphate Receptor 1 in the Brain. J Med Chem. 2023;66(7):4671-4688. [Content Brief]
[2]. Liu H, et al. Acute Rodent Tolerability, Toxicity, and Radiation Dosimetry Estimates of the S1P1-Specific Radioligand [11C]CS1P1. Mol Imaging Biol. 2020;22(2):285-292. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)