2. PROTAC Immunology/Inflammation
  3. PROTACs Toll-like Receptor (TLR)
  4. DB-3-291

DB-3-291 is potent and selective PROTAC CSK degrader, with a Kd of 1 nM.

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

DB-3-291 Chemical Structure

DB-3-291 Chemical Structure

CAS No. : 2769753-64-0

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Customer Review

Based on 1 publication(s) in Google Scholar

DB-3-291 Related Antibodies

Top Publications Citing Use of Products

View All PROTACs Isoform Specific Products:

View All Isoforms
von Hippel-Lindau (VHL) Cereblon MDM2 cIAP1

View All Toll-like Receptor (TLR) Isoform Specific Products:

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TLR3 TLR8 TLR9 TLR2 TLR4 TLR7 TLR1 TLR6

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

DB-3-291 is potent and selective PROTAC CSK degrader, with a Kd of 1 nM[1].

IC50 & Target

CSK[1]
Molecular Weight

886.37

Formula

C41H44ClN11O8S
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C1N(C2CCC(NC2=O)=O)C(C3=C1C=CC=C3OCC(NCCCCNC(CN4CCN(C5=CC(NC6=NC=C(C(NC7=C(Cl)C=CC=C7C)=O)S6)=NC(C)=N5)CC4)=O)=O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

-20°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (56.41 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 1.1282 mL 5.6410 mL 11.2820 mL
5 mM 0.2256 mL 1.1282 mL 2.2564 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 (stored under nitrogen). 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: 5 mg/mL (5.64 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 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 (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.
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 (stored under nitrogen)

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 (stored under nitrogen). 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 1.1282 mL 5.6410 mL 11.2820 mL 28.2049 mL
5 mM 0.2256 mL 1.1282 mL 2.2564 mL 5.6410 mL
10 mM 0.1128 mL 0.5641 mL 1.1282 mL 2.8205 mL
15 mM 0.0752 mL 0.3761 mL 0.7521 mL 1.8803 mL
20 mM 0.0564 mL 0.2820 mL 0.5641 mL 1.4102 mL
25 mM 0.0451 mL 0.2256 mL 0.4513 mL 1.1282 mL
30 mM 0.0376 mL 0.1880 mL 0.3761 mL 0.9402 mL
40 mM 0.0282 mL 0.1410 mL 0.2820 mL 0.7051 mL
50 mM 0.0226 mL 0.1128 mL 0.2256 mL 0.5641 mL
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DB-3-291 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:

DB-3-2912769753-64-0PROTACsToll-like Receptor (TLR)CSKInhibitorinhibitorinhibit

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