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  3. DOTA-tris(tBu)ester NHS ester

DOTA-tris(tBu)ester NHS ester 

Cat. No.: HY-131326 Purity: ≥98.0%
COA Handling Instructions

DOTA-tris(tBu)ester NHS ester is a derivative of DOTA for the labeling of peptides and antibodies.

For research use only. We do not sell to patients.

DOTA-tris(tBu)ester NHS ester Chemical Structure

DOTA-tris(tBu)ester NHS ester Chemical Structure

CAS No. : 819869-77-7

Size Price Stock Quantity
25 mg USD 98 In-stock
50 mg USD 156 In-stock
100 mg USD 250 In-stock
250 mg USD 450 In-stock
500 mg   Get quote  
1 g   Get quote  

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This product is a controlled substance and not for sale in your territory.

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Based on 1 publication(s) in Google Scholar

Other Forms of DOTA-tris(tBu)ester NHS ester:

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  • Biological Activity

  • Purity & Documentation

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Description

DOTA-tris(tBu)ester NHS ester is a derivative of DOTA for the labeling of peptides and antibodies[1].

Molecular Weight

669.81

Formula

C32H55N5O10

CAS No.
Appearance

Solid

Color

White to off-white

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

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

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)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.4930 mL 7.4648 mL 14.9296 mL
5 mM 0.2986 mL 1.4930 mL 2.9859 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (3.73 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (3.73 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:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: 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)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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

Purity: ≥98.0%

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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DOTA-tris(tBu)ester NHS ester Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
DOTA-tris(tBu)ester NHS ester
Cat. No.:
HY-131326
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