D18
Based on 1 Customer Validation
D18 is an immune modulator. D18 acts as a TLR7/8 dual agonist (EC50 = 24 nM for hTLR7 and 10 nM for hTLR8, respectively). D18 increases PD-L1 expression through epigenetic regulation, thus sensitizing tumors to PD-1/PD-L1 blockade. D18 is a ADC cytotoxin uesd for the systhesis of ADC HE-S2 (HY-144497). D18 has strong immune activation and anti-tumor activity. D18 commonly used in cancer research, such as colon cancer.
For research use only. We do not sell to patients.
- Purity: 98.14%
- CAS No.: 2230218-36-5
- Formula: C21H28N6
- Molecular Weight:364.49
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Biological Activity
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:1×105 CT26 cells injected female BALB/c mice (6-8 weeks)[2]
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Dosage:25 μg/mouse
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Administration:Intraperitoneal injection (i.p.), once a week, for 3 times
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Result:Significantly inhibited tumor volume.
Significantly increased the penetration of immune cells.
Had good security.
Chemical Information
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CAS No. 2230218-36-5
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Appearance Solid
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Molecular Weight 364.49
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Formula C21H28N6
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Color White to light yellow
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SMILES
NC(N=C1NCCCC)=NC(C1=N2)=CC=C2CC(C=C3)=CC=C3CN(C)C
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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 6 months -20°C 1 month
Solvent & Solubility
DMSO : 100 mg/mL (274.36 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. 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. 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 40% PEG300 5% Tween-80 45% Saline
Solubility: 2.5 mg/mL (6.86 mM); Clear solution; Need ultrasonic
This protocol yields a clear solution of 2.5 mg/mL.
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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: 2.5 mg/mL (6.86 mM); Clear solution; Need ultrasonic
This protocol yields a clear solution of 2.5 mg/mL.
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.
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.
Purity & Documentation
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Data Sheet (273 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[1]. He L, et al. Immune Modulating Antibody-Drug Conjugate (IM-ADC) for Cancer Immunotherapy. J Med Chem. 2021;64(21):15716-15726. [Content Brief]
[2]. Wang Z, et al. Structure-Based Design of Highly Potent Toll-like Receptor 7/8 Dual Agonists for Cancer Immunotherapy. J Med Chem. 2021 Jun 10;64(11):7507-7532. [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. 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 | 2.7436 mL | 13.7178 mL | 27.4356 mL | 68.5890 mL |
| 5 mM | 0.5487 mL | 2.7436 mL | 5.4871 mL | 13.7178 mL | |
| 10 mM | 0.2744 mL | 1.3718 mL | 2.7436 mL | 6.8589 mL | |
| 15 mM | 0.1829 mL | 0.9145 mL | 1.8290 mL | 4.5726 mL | |
| 20 mM | 0.1372 mL | 0.6859 mL | 1.3718 mL | 3.4294 mL | |
| 25 mM | 0.1097 mL | 0.5487 mL | 1.0974 mL | 2.7436 mL | |
| 30 mM | 0.0915 mL | 0.4573 mL | 0.9145 mL | 2.2863 mL | |
| 40 mM | 0.0686 mL | 0.3429 mL | 0.6859 mL | 1.7147 mL | |
| 50 mM | 0.0549 mL | 0.2744 mL | 0.5487 mL | 1.3718 mL | |
| 60 mM | 0.0457 mL | 0.2286 mL | 0.4573 mL | 1.1431 mL | |
| 80 mM | 0.0343 mL | 0.1715 mL | 0.3429 mL | 0.8574 mL | |
| 100 mM | 0.0274 mL | 0.1372 mL | 0.2744 mL | 0.6859 mL |