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  4. DTPA-tetra (t-Bu ester)

DTPA-tetra (t-Bu ester)  (Synonyms: tetra-tBu-DTPA)

Cat. No.: HY-A0074 Purity: ≥99.0%
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DTPA-tetra (t-Bu ester)is a bifunctional chelator (Bifunctional Chelator; BFC) and a macrocyclic DPTA derivative used for tumor pre-targeting. DTPA-tetra (t-Bu ester) can be used for conjugation of peptides and radionuclides.

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

DTPA-tetra (t-Bu ester) Chemical Structure

DTPA-tetra (t-Bu ester) Chemical Structure

CAS No. : 174267-71-1

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Based on 1 publication(s) in Google Scholar

DTPA-tetra (t-Bu ester) Related Antibodies

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Description

DTPA-tetra (t-Bu ester)is a bifunctional chelator (Bifunctional Chelator; BFC) and a macrocyclic DPTA derivative used for tumor pre-targeting. DTPA-tetra (t-Bu ester) can be used for conjugation of peptides and radionuclides.

Molecular Weight

617.77

Formula

C30H55N3O10
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(CN(CCN(CC(OC(C)(C)C)=O)CC(OC(C)(C)C)=O)CCN(CC(OC(C)(C)C)=O)CC(OC(C)(C)C)=O)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°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 (161.87 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.6187 mL 8.0936 mL 16.1873 mL
5 mM 0.3237 mL 1.6187 mL 3.2375 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 (4.05 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 (4.05 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

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 1.6187 mL 8.0936 mL 16.1873 mL 40.4681 mL
5 mM 0.3237 mL 1.6187 mL 3.2375 mL 8.0936 mL
10 mM 0.1619 mL 0.8094 mL 1.6187 mL 4.0468 mL
15 mM 0.1079 mL 0.5396 mL 1.0792 mL 2.6979 mL
20 mM 0.0809 mL 0.4047 mL 0.8094 mL 2.0234 mL
25 mM 0.0647 mL 0.3237 mL 0.6475 mL 1.6187 mL
30 mM 0.0540 mL 0.2698 mL 0.5396 mL 1.3489 mL
40 mM 0.0405 mL 0.2023 mL 0.4047 mL 1.0117 mL
50 mM 0.0324 mL 0.1619 mL 0.3237 mL 0.8094 mL
60 mM 0.0270 mL 0.1349 mL 0.2698 mL 0.6745 mL
80 mM 0.0202 mL 0.1012 mL 0.2023 mL 0.5059 mL
100 mM 0.0162 mL 0.0809 mL 0.1619 mL 0.4047 mL
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DTPA-tetra (t-Bu 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.

Keywords:

DTPA-tetra (t-Bu ester)174267-71-1tetra-tBu-DTPABiochemical Assay ReagentsInhibitorinhibitorinhibit

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