2. PROTAC
  3. PROTAC Linkers
  4. Biotin-PEG3-Mal

Biotin-PEG3-Mal is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

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

Biotin-PEG3-Mal Chemical Structure

Biotin-PEG3-Mal Chemical Structure

CAS No. : 1431618-70-0

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50 mg USD 115 In-stock
100 mg USD 150 In-stock
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500 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Biotin-PEG3-Mal Related Antibodies

Top Publications Citing Use of Products

View All PROTAC Linkers Isoform Specific Products:

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PEG Linkers Alkyl-Chain Linkers Alkyl/ether Linkers

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Biotin-PEG3-Mal is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

IC50 & Target

PEGs

 

In Vitro

PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Biotin-PEG3-Mal Related Antibodies
Molecular Weight

569.67

Formula

C25H39N5O8S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NCCOCCOCCOCCNC(CCN1C(C=CC1=O)=O)=O)CCCC[C@@H]2SC[C@]([C@]2([H])N3)([H])NC3=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (175.54 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 1.7554 mL 8.7770 mL 17.5540 mL
5 mM 0.3511 mL 1.7554 mL 3.5108 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 (4.39 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 (4.39 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).
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
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 1.7554 mL 8.7770 mL 17.5540 mL 43.8851 mL
5 mM 0.3511 mL 1.7554 mL 3.5108 mL 8.7770 mL
10 mM 0.1755 mL 0.8777 mL 1.7554 mL 4.3885 mL
15 mM 0.1170 mL 0.5851 mL 1.1703 mL 2.9257 mL
20 mM 0.0878 mL 0.4389 mL 0.8777 mL 2.1943 mL
25 mM 0.0702 mL 0.3511 mL 0.7022 mL 1.7554 mL
30 mM 0.0585 mL 0.2926 mL 0.5851 mL 1.4628 mL
40 mM 0.0439 mL 0.2194 mL 0.4389 mL 1.0971 mL
50 mM 0.0351 mL 0.1755 mL 0.3511 mL 0.8777 mL
60 mM 0.0293 mL 0.1463 mL 0.2926 mL 0.7314 mL
80 mM 0.0219 mL 0.1097 mL 0.2194 mL 0.5486 mL
100 mM 0.0176 mL 0.0878 mL 0.1755 mL 0.4389 mL
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Biotin-PEG3-Mal 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:

Biotin-PEG3-Mal1431618-70-0PROTAC LinkersInhibitorinhibitorinhibit

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