DOTA-tris(tBu)ester NHS ester
Based on 1 Customer Validation
DOTA-tris(tBu)ester NHS ester is a bifunctional precursor to a DOTA-based chelating agent. DOTA-tris(tBu)ester NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules, and upon deprotection forms stable complexes with metal ions for applications in molecular imaging.
For research use only. We do not sell to patients.
- Purity: 98.0%
- CAS No.: 819869-77-7
- Formula: C32H55N5O10
- Molecular Weight:669.81
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Storage:
-20°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
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
DOTA-tris(tBu)-NHS ester enables high loading of metal ions when conjugated to multivalent scaffolds, thereby enhancing imaging signals[1].
DOTA-tris(tBu)ester NHS ester can be used to label radiotherapeutic agents or imaging probes and detect labeled tumors with PET and SPECT methods[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 819869-77-7
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Appearance Solid
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Molecular Weight 669.81
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Formula C32H55N5O10
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Color White to off-white
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SMILES
O=C(ON1C(CCC1=O)=O)CN2CCN(CC(OC(C)(C)C)=O)CCN(CC(OC(C)(C)C)=O)CCN(CC(OC(C)(C)C)=O)CC2
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 100 mg/mL (149.30 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)
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: ≥ 5 mg/mL (7.46 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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: ≥ 5 mg/mL (7.46 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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. * 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.
Purity & Documentation
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Data Sheet (274 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 (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 | 1.4930 mL | 7.4648 mL | 14.9296 mL | 37.3240 mL |
| 5 mM | 0.2986 mL | 1.4930 mL | 2.9859 mL | 7.4648 mL | |
| 10 mM | 0.1493 mL | 0.7465 mL | 1.4930 mL | 3.7324 mL | |
| 15 mM | 0.0995 mL | 0.4977 mL | 0.9953 mL | 2.4883 mL | |
| 20 mM | 0.0746 mL | 0.3732 mL | 0.7465 mL | 1.8662 mL | |
| 25 mM | 0.0597 mL | 0.2986 mL | 0.5972 mL | 1.4930 mL | |
| 30 mM | 0.0498 mL | 0.2488 mL | 0.4977 mL | 1.2441 mL | |
| 40 mM | 0.0373 mL | 0.1866 mL | 0.3732 mL | 0.9331 mL | |
| 50 mM | 0.0299 mL | 0.1493 mL | 0.2986 mL | 0.7465 mL | |
| 60 mM | 0.0249 mL | 0.1244 mL | 0.2488 mL | 0.6221 mL | |
| 80 mM | 0.0187 mL | 0.0933 mL | 0.1866 mL | 0.4666 mL | |
| 100 mM | 0.0149 mL | 0.0746 mL | 0.1493 mL | 0.3732 mL |
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