Thymine
Based on 1 publication(s) in Google Scholar
Thymine, one of the four bases of DNA, is a substrate for rat liver dihydropyrimidine dehydrogenase (DPD), with a Km value of 2.2 μM, Ki of 24 μM (using 5-FU as the DPD substrate), and a specific activity of 0.68 nmol/min/mg.
For research use only. We do not sell to patients.
- Purity : 99.94%
- CAS No.: 65-71-4
- Formula: C5H6N2O2
- Molecular Weight:126.11
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) Thymine
MoreAll Endogenous Metabolite Isoforms
More
Biological Activity
Description
IC50 & Target
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Human Endogenous Metabolite |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| CCRF-CEM | IC50 |
>100 μM
Compound: Thymine
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Cytotoxicity was determined in CEM cells, relative to RVT
Cytotoxicity was determined in CEM cells, relative to RVT
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[PMID: 15081000] |
| MDCK | EC50 |
>100 μg/mL
Compound: 18a
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Antiviral activity against Influenza A virus H5N1 Vietnam/1203/2004H infected in MDCK cells
Antiviral activity against Influenza A virus H5N1 Vietnam/1203/2004H infected in MDCK cells
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[PMID: 20674371] |
| MDCK | EC50 |
>100 μg/mL
Compound: 18a
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Antiviral activity against Influenza B virus Florida/4/2006 infected in MDCK cells
Antiviral activity against Influenza B virus Florida/4/2006 infected in MDCK cells
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[PMID: 20674371] |
| MDCK | IC50 |
>100 μg/mL
Compound: 18a
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Cytotoxicity against MDCK cells
Cytotoxicity against MDCK cells
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[PMID: 20674371] |
| Vero | IC50 |
>100 μM
Compound: Thymine
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Cytotoxicity was determined in Vero cells, relative to RVT
Cytotoxicity was determined in Vero cells, relative to RVT
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[PMID: 15081000] |
In Vitro
Chemical Information
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CAS No. 65-71-4
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Appearance Solid
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Molecular Weight 126.11
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Formula C5H6N2O2
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Color White to off-white
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SMILES
O=C1NC(C(C)=CN1)=O
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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
Publications (1)
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Journal Impact Factor
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Most Recent
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J Pharm Biomed Anal
A novel UHPLC-MS/MS approach for simultaneous quantification of pyrimidine metabolites in human biofluids. [Abstract]2025 Nov 15:265:117026. PMID: 40544701
Solvent & Solubility
In Vitro:
DMSO : 100 mg/mL (792.96 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 5 mg/mL (39.65 mM; Need ultrasonic)
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.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (19.82 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 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 (19.82 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.
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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: PBS
Solubility: 4.17 mg/mL (33.07 mM); Clear solution; Need ultrasonic and warming and heat to 60°C
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.
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 (276 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 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. 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 |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 7.9296 mL | 39.6479 mL | 79.2959 mL | 198.2396 mL |
| 5 mM | 1.5859 mL | 7.9296 mL | 15.8592 mL | 39.6479 mL | |
| 10 mM | 0.7930 mL | 3.9648 mL | 7.9296 mL | 19.8240 mL | |
| 15 mM | 0.5286 mL | 2.6432 mL | 5.2864 mL | 13.2160 mL | |
| 20 mM | 0.3965 mL | 1.9824 mL | 3.9648 mL | 9.9120 mL | |
| 25 mM | 0.3172 mL | 1.5859 mL | 3.1718 mL | 7.9296 mL | |
| 30 mM | 0.2643 mL | 1.3216 mL | 2.6432 mL | 6.6080 mL | |
| DMSO | 40 mM | 0.1982 mL | 0.9912 mL | 1.9824 mL | 4.9560 mL |
| 50 mM | 0.1586 mL | 0.7930 mL | 1.5859 mL | 3.9648 mL | |
| 60 mM | 0.1322 mL | 0.6608 mL | 1.3216 mL | 3.3040 mL | |
| 80 mM | 0.0991 mL | 0.4956 mL | 0.9912 mL | 2.4780 mL | |
| 100 mM | 0.0793 mL | 0.3965 mL | 0.7930 mL | 1.9824 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Thymine Related Classifications
HY-W010450 Related Classifications
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