2. Antibody-drug Conjugate/ADC Related
  3. ADC Linker
  4. DBCO-PEG2-DBCO

DBCO-PEG2-DBCO is a click chemistry reagent containing a DBCO group. DBCO-PEG2-DBCO is a PEG linker containing two terminal DBCO groups. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. T Reagent grade, for research use only.

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

DBCO-PEG2-DBCO Chemical Structure

DBCO-PEG2-DBCO Chemical Structure

CAS No. : 2639395-48-3

Size Price Stock Quantity
5 mg USD 70 In-stock
10 mg USD 110 In-stock
25 mg USD 180 In-stock
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Based on 1 publication(s) in Google Scholar

DBCO-PEG2-DBCO Related Antibodies

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Description

DBCO-PEG2-DBCO is a click chemistry reagent containing a DBCO group. DBCO-PEG2-DBCO is a PEG linker containing two terminal DBCO groups. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. T Reagent grade, for research use only[1].

Molecular Weight

722.83

Formula

C44H42N4O6
CAS No.
Appearance

Solid

Color

White to yellow

SMILES

O=C(CCC(N1C2=C(C#CC3=C(C1)C=CC=C3)C=CC=C2)=O)NCCOCCOCCNC(CCC(N4C5=C(C#CC6=C(C4)C=CC=C6)C=CC=C5)=O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (138.35 mM; ultrasonic and warming and heat to 60°C; 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 1.3835 mL 6.9173 mL 13.8345 mL
5 mM 0.2767 mL 1.3835 mL 2.7669 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. 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 (3.46 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 (3.46 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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).
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: 95.90%

COA (245 KB) HNMR (301 KB) LCMS (98 KB)

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
DMSO 1 mM 1.3835 mL 6.9173 mL 13.8345 mL 34.5863 mL
5 mM 0.2767 mL 1.3835 mL 2.7669 mL 6.9173 mL
10 mM 0.1383 mL 0.6917 mL 1.3835 mL 3.4586 mL
15 mM 0.0922 mL 0.4612 mL 0.9223 mL 2.3058 mL
20 mM 0.0692 mL 0.3459 mL 0.6917 mL 1.7293 mL
25 mM 0.0553 mL 0.2767 mL 0.5534 mL 1.3835 mL
30 mM 0.0461 mL 0.2306 mL 0.4612 mL 1.1529 mL
40 mM 0.0346 mL 0.1729 mL 0.3459 mL 0.8647 mL
50 mM 0.0277 mL 0.1383 mL 0.2767 mL 0.6917 mL
60 mM 0.0231 mL 0.1153 mL 0.2306 mL 0.5764 mL
80 mM 0.0173 mL 0.0865 mL 0.1729 mL 0.4323 mL
100 mM 0.0138 mL 0.0692 mL 0.1383 mL 0.3459 mL
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DBCO-PEG2-DBCO 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:

DBCO-PEG2-DBCO2639395-48-3ADC LinkerAntibody-drug conjugates linkerclick chemistryhigh yieldhigh specificitysimplicitybindingInhibitorinhibitorinhibit

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