SM 16
Based on 5 publication(s) in Google Scholar
SM 16 is a ALK5/ALK4 kinase inhibitor with Kis of 10 and 1.5 nM, respectively.
For research use only. We do not sell to patients.
- Purity: 99.82%
- CAS No.: 614749-78-9
- Formula: C25H26N4O3
- Molecular Weight:430.50
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
Publications Citing Use of MedChemExpress (MCE) SM 16
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Biological Activity
Ki: ALK5 (10 nM), ALK4 (1.5 nM)[1]
SM 16 inhibits TGFβ-induced plasminogen activator inhibitor-luciferase activity (IC50=64 nM) and TGFβ- or activin-induced Smad2 phosphorylation at concentrations between 100 and 620 nM. SM 16 is tested against >60 related and unrelated kinases and shows moderate off-target activity only against Raf (IC50=1 μM) and p38/SAPKa (IC50=0.8 μM). SM 16 exhibits no inhibitory activity against ALK family members ALK1 and ALK6[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 614749-78-9
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Appearance Solid
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Molecular Weight 430.50
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Formula C25H26N4O3
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Color White to off-white
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SMILES
O=C(C1(CC2)CCC2(C3=NC(C4=CC=C(OCO5)C5=C4)=C(C6=NC(C)=CC=C6)N3)CC1)N
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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
Publications (5)
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Journal Impact Factor
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Most Recent
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Cancer Cell
Myofibroblast programming blocks differentiation of TLS-organizing fibroblastic reticular cells in pancreatic cancer. [Abstract]2026 Mar 26:S1535-6108(26)00156-X. PMID: 41895277 -
Cell Rep
NFE2-driven neutrophil polarization promotes pancreatic cancer liver metastasis progression. [Abstract]2025 Jan 18;44(2):115226. PMID: 39827463 -
iScience
Organic phosphate but not inorganic phosphate regulates Fgf23 expression through MAPK and TGF-ꞵ signaling. [Abstract]2024 Mar 29;27(6):109625. PMID: 38883842 -
Biol Reprod
TGF-β3 Promotes Trophoblast Development in Sheep Embryos via ACSS2-Dependent Permissive Lipid Metabolism. [Abstract]2025 Oct 1:ioaf220. PMID: 41031631 -
Solvent & Solubility
DMSO : 65 mg/mL (150.99 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, 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: ≥ 2.58 mg/mL (5.99 mM); Clear solution
This protocol yields a clear solution of ≥ 2.58 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.8 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.58 mg/mL (5.99 mM); Clear solution
This protocol yields a clear solution of ≥ 2.58 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.8 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.
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
Mice[1]
BALB/c mice are injected on the right flank with 1×106 AB12 tumor cells. Mice are randomly divided into two groups and one group is implanted with minipumps loaded with 20% Captisol (control) on the left flank and the other group is implanted with minipumps loaded with 20 mg/mL SM 16. Tumor recurrence is defined as the first day when a tumor is unambiguously visible or palpable. Plasma is obtained under anesthesia and analyzed for SM 16[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (280 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)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Suzuki E, et al. A novel small-molecule inhibitor of transforming growth factor beta type I receptor kinase (SM16) inhibits murine mesothelioma tumor growth in vivo and prevents tumor recurrence after surgical resection. Cancer Res. 2007 Mar 1;67(5):2351-9. [Content Brief]
[2]. Fu K, et al. SM16, an orally active TGF-beta type I receptor inhibitor prevents myofibroblast induction and vascular fibrosis in the rat carotid injury model. Arterioscler Thromb Vasc Biol. 2008 Apr;28(4):665-71. [Content Brief]
[3]. Engebretsen KV, et al. Attenuated development of cardiac fibrosis in left ventricular pressure overload by SM16, an orally active inhibitor of ALK5. J Mol Cell Cardiol. 2014 Nov;76:148-57. [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 | 2.3229 mL | 11.6144 mL | 23.2288 mL | 58.0720 mL |
| 5 mM | 0.4646 mL | 2.3229 mL | 4.6458 mL | 11.6144 mL | |
| 10 mM | 0.2323 mL | 1.1614 mL | 2.3229 mL | 5.8072 mL | |
| 15 mM | 0.1549 mL | 0.7743 mL | 1.5486 mL | 3.8715 mL | |
| 20 mM | 0.1161 mL | 0.5807 mL | 1.1614 mL | 2.9036 mL | |
| 25 mM | 0.0929 mL | 0.4646 mL | 0.9292 mL | 2.3229 mL | |
| 30 mM | 0.0774 mL | 0.3871 mL | 0.7743 mL | 1.9357 mL | |
| 40 mM | 0.0581 mL | 0.2904 mL | 0.5807 mL | 1.4518 mL | |
| 50 mM | 0.0465 mL | 0.2323 mL | 0.4646 mL | 1.1614 mL | |
| 60 mM | 0.0387 mL | 0.1936 mL | 0.3871 mL | 0.9679 mL | |
| 80 mM | 0.0290 mL | 0.1452 mL | 0.2904 mL | 0.7259 mL | |
| 100 mM | 0.0232 mL | 0.1161 mL | 0.2323 mL | 0.5807 mL |