SW203668
Based on 1 Customer Validation
SW203668 is an irreversible stearoyl CoA desaturase (SCD) inhibitor with an IC50 of 54 nM. SW203668 covalently binds and inhibits SCD, depletes unsaturated fatty acids, and triggers cell death in sensitive cells. SW203668 requires demethylation by CYP4F11 to form its active SCD-inhibiting form; differential CYP4F11 expression drives selective cytotoxicity. SW203668 exerts cytotoxicity toward CYP4F11-expressing non-small cell lung cancer (NSCLC) cells and spares CYP4F11-lacking NSCLC cells. SW203668 inhibits tumor growth in immunodeficient mice bearing CYP4F11-expressing NSCLC xenografts and spares mouse skin sebocytes. SW203668 can be used for the research of non-small cell lung cancer.
For research use only. We do not sell to patients.
- CAS No.: 1673556-40-5
- Formula: C22H19N3O2S
- Molecular Weight:389.47
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Storage:
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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Solvent & Solubility
- Protocols
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Description
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| NCI-H2122 | IC50 |
22 nM
Compound: rac-27
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Inhibition of SCD in human NCI-H2122 cells expressing CYP4F11 assessed as reduction in cell viability incubated for 96 hrs by cell titer Glo reagent based assay
Inhibition of SCD in human NCI-H2122 cells expressing CYP4F11 assessed as reduction in cell viability incubated for 96 hrs by cell titer Glo reagent based assay
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[PMID: 32787093] |
In Vitro
SW203668 is selectively cytotoxic to 4 human NSCLC cell lines (H2122, H460, and 2 others) with IC50 values of 0.022-0.116 μM, and shows no toxicity to 8 other human NSCLC cell lines at concentrations up to 10 μM[1].
SW203668 inhibits SCD activity in H2122 cell microsomes with an IC50 of 0.054 μM[1].
SW203668 is activated by CYP4F11 to crosslink and inhibit SCD, conferring cytotoxicity to previously insensitive H1155 NSCLC cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Parmacokinetics
| Species | Dose | Route | T1/2 |
|---|---|---|---|
| Mice[1] | 25 mg/kg | i.p. | 8 h |
In Vivo
SW203668 (6-20 mg/kg; i.p.; once daily; 15 days) spares sebocyte viability in healthy CD-1 mice at daily i.p. doses of 6 mg/kg and 20 mg/kg for 15 days, with 20 mg/kg showing significantly higher sebocyte counts than a conventional SCD inhibitor[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:NOD-SCID (male and female) injected with H2122 cells[1]
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Dosage:25 mg/kg; 20 mg/kg; 6 mg/kg
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Administration:i.p.; twice daily (25 mg/kg); once daily (20, 6 mg/kg); 14-15 days
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Result:Substantially reduced the growth rate of H2122-derived tumors at 25 mg/kg twice daily for 10-15 days.
Showed no effect on H1155-derived tumors at 25 mg/kg twice daily for 10-15 days.
Inhibited H2122 tumor growth at 20 mg/kg once daily for 14 days.
Resulted in significantly higher sebocyte counts in mouse skin than Xenon-45 at 20 mg/kg once daily for 14 days.
Maintained a therapeutic window with preserved sebocytes at 6 mg/kg once daily for 14 days.
Chemical Information
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CAS No. 1673556-40-5
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Appearance Solid
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Molecular Weight 389.47
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Formula C22H19N3O2S
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SMILES
COC1=CC=C2C(SC(NC(C3=CC=C(C=C3)C(C4=CC=CC=C4)N)=O)=N2)=C1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
In Vitro:
DMSO : 50 mg/mL (128.38 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)
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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (6.42 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 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:
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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.
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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Mammalian live/dead viability and cytotoxicity staining
Live/dead viability and cytotoxicity staining assays are based on the simultaneous detection of intracellular esterase activity in metabolically active (viable) cells and membrane integrity loss in non-viable cells. In commonly used dual-staining approaches, membrane-permeant fluorogenic substrates are converted by intracellular esterases into fluorescent products in live cells, while impermeant DNA-binding dyes selectively enter cells with compromised plasma membranes and label nucleic acids in dead or dying cells, enabling discrimination between viable and non-viable populations by fluorescence microscopy or flow cytometry.
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Patient-Derived Xenograft (PDX)
Patient-derived xenograft (PDX) models are generated by engrafting primary human tumor tissue directly into immunodeficient mice, allowing in vivo propagation of patient tumor biology without initial in vitro adaptation. These models are used to preserve key histopathological and molecular characteristics of the original tumor and enable assessment of tumor growth dynamics and therapeutic response in a living organism. The biological readout is tumor engraftment and subsequent growth in the murine host, which reflects the ability of human tumor cells to survive, vascularize, and expand in an immunocompromised microenvironment.
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Apoptosis Solutions
Apoptosis is a regulated, generally non-lytic cell-death pathway that removes unwanted, damaged, infected, or abnormal cells through coordinated morphological changes, caspase activation, DNA fragmentation, and membrane remodeling. The intrinsic apoptosis pathway is controlled mainly by mitochondrial outer membrane permeabilization, BCL-2 family proteins, cytochrome c release, apoptosome formation, caspase-9 activation, and downstream executioner caspase-3/7 activation. The extrinsic apoptosis pathway is initiated by death receptors such as Fas, TNFR, and TRAIL receptors, which recruit adaptor proteins and activate caspase-8 before engaging executioner caspases or mitochondrial amplification through BID cleavage. Apoptosis is linked to many phenotypes, including cancer cell killing, tissue homeostasis, immune regulation, neurodegeneration, infection response, and treatment-induced cytotoxicity; unresolved questions include how apoptosis interacts with necroptosis, pyroptosis, ferroptos
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Patient-Derived Orthotopic Xenograft (PDOX)
Patient-derived orthotopic xenograft (PDOX) modeling implants fresh patient tumor tissue or patient-derived tumor cells into the anatomically corresponding organ or tissue site of immunodeficient mice, usually by surgical orthotopic implantation, to preserve patient tumor histology, local microenvironmental context, invasion, metastatic behavior, and treatment-response features better than subcutaneous implantation. PDOX readouts include tumor engraftment, orthotopic tumor growth, local invasion, metastasis, recurrence after resection, histologic similarity to the donor tumor, biomarker retention, molecular concordance, survival, and response or resistance to therapy. PDOX models are used for preclinical drug testing and individualized therapy evaluation, but engraftment success varies by tumor type and specimen quality.
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Subcutaneous Cell-Line-Derived Xenograft
Subcutaneous cell-line-derived xenograft (CDX) models are established by implanting cultured human cancer cell lines into immunodeficient mice, where the injected cells form localized tumors that can be monitored in vivo as a measure of tumorigenic potential, growth kinetics, and treatment response. These models are widely used in oncology research because they allow reproducible tumor formation and enable comparative assessment of tumor growth between different cell lines or genetic manipulations in a controlled in vivo microenvironment. Subcutaneous implantation of cancer cells in immunodeficient mice is a standard approach for evaluating tumor growth behavior and therapeutic response across multiple cancer types, including prostate, esophageal, pancreatic, and colon cancer models.
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Orthotopic Cell-Line Xenograft
Orthotopic cell-line xenograft models involve implantation of human cancer cell lines into the anatomically corresponding organ of immunodeficient mice to reproduce tumor growth within a native microenvironment, enabling more clinically relevant tumor behavior compared with subcutaneous models. These models are widely used because orthotopic placement better recapitulates tumor progression, including invasion and metastatic spread, which are often underrepresented in heterotopic implantation systems. Compared with conventional xenografts, orthotopic implantation is described as more technically complex but provides improved simulation of tumor-microenvironment interactions and metastatic behavior, making it particularly valuable for translational oncology research. Surgical orthotopic implantation approaches have been emphasized as enabling faithful reproduction of clinical cancer features, including metastasis and disease progression patterns that align with the tumor’s organ of origi
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Cell Viability Determination by MTT Colorimetric Assay
The following protocol uses the MTT colorimetric assay as a classic literature-established method for assessing cell viability/metabolic activity in cultured mammalian cells. MTT[3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] is reduced by metabolically active cells to a colored formazan product; the amount of formazan is quantified spectrophotometrically and provides an indirect measure of metabolically active viable cells. Importantly, MTT reduction reflects cellular oxidoreductase/metabolic activity rather than an absolute direct count of living cells, so changes in cellular metabolism can alter the signal independently of cell number.
Purity & Documentation
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Data Sheet (273 KB)
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SDS (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
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 |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.5676 mL | 12.8380 mL | 25.6759 mL | 64.1898 mL |
| 5 mM | 0.5135 mL | 2.5676 mL | 5.1352 mL | 12.8380 mL | |
| 10 mM | 0.2568 mL | 1.2838 mL | 2.5676 mL | 6.4190 mL | |
| 15 mM | 0.1712 mL | 0.8559 mL | 1.7117 mL | 4.2793 mL | |
| 20 mM | 0.1284 mL | 0.6419 mL | 1.2838 mL | 3.2095 mL | |
| 25 mM | 0.1027 mL | 0.5135 mL | 1.0270 mL | 2.5676 mL | |
| 30 mM | 0.0856 mL | 0.4279 mL | 0.8559 mL | 2.1397 mL | |
| 40 mM | 0.0642 mL | 0.3209 mL | 0.6419 mL | 1.6047 mL | |
| 50 mM | 0.0514 mL | 0.2568 mL | 0.5135 mL | 1.2838 mL | |
| 60 mM | 0.0428 mL | 0.2140 mL | 0.4279 mL | 1.0698 mL | |
| 80 mM | 0.0321 mL | 0.1605 mL | 0.3209 mL | 0.8024 mL | |
| 100 mM | 0.0257 mL | 0.1284 mL | 0.2568 mL | 0.6419 mL |
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