2. PROTAC Cell Cycle/DNA Damage Autophagy Apoptosis Immunology/Inflammation
  3. Ligands for Target Protein for PROTAC FKBP
  4. SLF

SLF is a synthetic ligand for FK506-binding protein (FKBP) with an affinity of 3.1 μM for FKBP51 and an IC50 of 2.6 μM for FKBP12. SLF can be used in the synthesis of PROTAC.

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

SLF Chemical Structure

SLF Chemical Structure

CAS No. : 195513-96-3

Size Price Stock Quantity
Oil + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 83 In-stock
Solution
10 mM * 1 mL in DMSO USD 83 In-stock
Oil
5 mg USD 75 In-stock
10 mg USD 140 In-stock
50 mg USD 560 In-stock
100 mg USD 930 In-stock
200 mg   Get quote  
500 mg   Get quote  

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

Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of SLF:

SLF Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

SLF is a synthetic ligand for FK506-binding protein (FKBP) with an affinity of 3.1 μM for FKBP51 and an IC50 of 2.6 μM for FKBP12. SLF can be used in the synthesis of PROTAC[1][2][3].

In Vitro

Three scout fragments-KB02, KB03, and KB05 are fused, which cover two different electrophile groups (chloroacetamide and acrylamide) and display broad cysteine reactivity in the human proteome-to the SLF ligand that binds tightly and selectively to FKBP12, a cytosolic prolyl isomerase that has been frequently used to study ligand-induced protein degradation[3].

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

SLF Related Antibodies
Molecular Weight

524.65

Formula

C30H40N2O6
CAS No.
Appearance

Oil

Color

Colorless to light yellow

SMILES

O=C([C@H]1N(C(C(C(C)(C)CC)=O)=O)CCCC1)O[C@@H](C2=CC=CC(N)=C2)CCC3=CC=C(OC)C(OC)=C3
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Pure form -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 (190.60 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 1.9060 mL 9.5302 mL 19.0603 mL
5 mM 0.3812 mL 1.9060 mL 3.8121 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: ≥ 2.08 mg/mL (3.96 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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% Corn Oil

    Solubility: ≥ 2.08 mg/mL (3.96 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

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: 99.91%

COA (253 KB) HNMR (161 KB) RP-HPLC (159 KB) LCMS (373 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 1.9060 mL 9.5302 mL 19.0603 mL 47.6508 mL
5 mM 0.3812 mL 1.9060 mL 3.8121 mL 9.5302 mL
10 mM 0.1906 mL 0.9530 mL 1.9060 mL 4.7651 mL
15 mM 0.1271 mL 0.6353 mL 1.2707 mL 3.1767 mL
20 mM 0.0953 mL 0.4765 mL 0.9530 mL 2.3825 mL
25 mM 0.0762 mL 0.3812 mL 0.7624 mL 1.9060 mL
30 mM 0.0635 mL 0.3177 mL 0.6353 mL 1.5884 mL
40 mM 0.0477 mL 0.2383 mL 0.4765 mL 1.1913 mL
50 mM 0.0381 mL 0.1906 mL 0.3812 mL 0.9530 mL
60 mM 0.0318 mL 0.1588 mL 0.3177 mL 0.7942 mL
80 mM 0.0238 mL 0.1191 mL 0.2383 mL 0.5956 mL
100 mM 0.0191 mL 0.0953 mL 0.1906 mL 0.4765 mL
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SLF 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:

SLF195513-96-3Ligands for Target Protein for PROTACFKBPTarget Protein-binding MoietyFK506-binding proteinligandFKBP12FKBP51PROTACInhibitorinhibitorinhibit

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