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Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 TFA; E3 ligase Ligand-Linker Conjugates 30 TFA)

Cat No.:V82947 Purity: ≥98%
Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 (TFA)) is a synthetic E3 ligase (e.g. CRBN) ligand-linker conjugate containing a Pomalidomide based cereblon ligand and 3 Linker for unit PEG.
Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 TFA; E3 ligase Ligand-Linker Conjugates 30 TFA)
Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 TFA; E3 ligase Ligand-Linker Conjugates 30 TFA) Chemical Structure CAS No.: 2414913-97-4
Product category: PROTAC Linkers
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100mg
Other Sizes

Other Forms of Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 TFA; E3 ligase Ligand-Linker Conjugates 30 TFA):

  • Pomalidomide-PEG3-C2-NH2 hydrochloride (Cereblon Ligand-Linker Conjugates 5 hydrochloride; E3 ligase Ligand-Linker Conjugates 30 hydrochloride)
  • E3 ligase Ligand-Linker Conjugates 30
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Pomalidomide-PEG3-C2-NH2 TFA (Cereblon Ligand-Linker Conjugates 5 (TFA)) is a synthetic E3 ligase (e.g. CRBN) ligand-linker conjugate containing a Pomalidomide based cereblon ligand and 3 Linker for unit PEG. Pomalidomide-PEG3-C2-NH2 TFA may be utilized in the synthesis/preparation of PROTAC.
Pomalidomide-PEG3-C2-NH2 TFA is a synthesized E3 ligase ligand-linker conjugate that incorporates a Pomalidomide-based cereblon ligand and a 3-unit PEG linker terminating in a primary amine (NH2) group. The TFA salt form enhances solubility. This compound is also known as Cereblon Ligand-Linker Conjugates 5 TFA and E3 Ligase Ligand-Linker Conjugates 30 TFA.
Biological Activity I Assay Protocols (From Reference)
Targets
Cereblon
CRBN (cereblon), an E3 ubiquitin ligase.
ln Vitro
As a cereblon-binding ligand-linker conjugate, Pomalidomide-PEG3-C2-NH2 TFA itself has no intrinsic biological activity; its function is to recruit the E3 ubiquitin ligase complex. The terminal primary amine is conjugated to a target protein ligand, and the resulting PROTAC can ubiquitinate and degrade the target protein via the proteasome.
ln Vivo
No specific in vivo activity has been reported for this conjugate alone; its in vivo degradation activity is observed only when conjugated to a target protein ligand to form a complete PROTAC molecule. The in vivo efficacy of such a PROTAC is typically evaluated in animal models.
Enzyme Assay
N/A; this compound is not assessed in isolated enzyme/receptor binding assays. As a synthetic intermediate, its quality is confirmed by analytical methods such as HPLC and NMR, with a standard purity of ≥98%. Its binding affinity to cereblon is validated as part of a complete PROTAC construct.
Cell Assay
N/A; this conjugate is not tested alone in cell-based assays but is used as a building block for constructing PROTACs. In a typical conjugation step, the terminal primary amine is coupled to a carboxylic acid-containing target protein ligand using standard coupling reagents such as EDC and NHS. The resulting PROTAC is then tested in cells for target degradation.
Animal Protocol
N/A; no animal studies are performed with the ligand-linker conjugate alone. For in vivo studies of a final PROTAC, the molecule is formulated in a suitable vehicle (e.g., 10% DMSO, 40% PEG300, 5% Tween-80, 45% saline) and administered to animal models.
ADME/Pharmacokinetics
This compound has a molecular weight of 562.49, a molecular formula of C23H29F3N4O9, and appears as a light yellow to yellow ointment. It is typically stored as an ointment at -20degC for up to 3 years or in a solvent at -80degC for 6 months. It is soluble in DMSO (100 mg/mL), ethanol (100 mg/mL), and water (16.67 mg/mL). Purity is ≥98%.
Toxicity/Toxicokinetics
This product is for research use only and is not for human therapeutic or clinical applications. Standard chemical safety precautions should be followed during handling. The product has not been fully validated for medical applications.
References

[1]. Discovery of MD-224 as a First-in-Class, Highly Potent, and Efficacious Proteolysis Targeting Chimera Murine Double Minute 2 Degrader Capable of Achieving Complete and Durable Tumor Regression. J Med Chem. 2019 Jan 24;62(2):448-466.

Additional Infomation
The 3-unit PEG linker provides a hydrophilic spacer that enhances water solubility and reduces steric hindrance in the formation of the ternary complex. The TFA salt form improves handling and solubility. This conjugate is a versatile building block for constructing cereblon-recruiting PROTACs and has been used in the discovery of MD-224, a first-in-class murine double minute 2 (MDM2) degrader capable of achieving complete and durable tumor regression.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C23H29F3N4O9
Molecular Weight
562.4930
Exact Mass
562.188
CAS #
2414913-97-4
Related CAS #
Pomalidomide-PEG3-C2-NH2;2093416-31-8;Pomalidomide-PEG3-C2-NH2 hydrochloride;2446474-09-3
PubChem CID
138911350
Appearance
Light yellow to yellow ointment
Hydrogen Bond Donor Count
4
Hydrogen Bond Acceptor Count
14
Rotatable Bond Count
13
Heavy Atom Count
39
Complexity
773
Defined Atom Stereocenter Count
0
SMILES
FC(C(=O)O[H])(F)F.O=C1C([H])(C([H])([H])C([H])([H])C(N1[H])=O)N1C(C2C([H])=C([H])C([H])=C(C=2C1=O)N([H])C([H])([H])C([H])([H])OC([H])([H])C([H])([H])OC([H])([H])C([H])([H])OC([H])([H])C([H])([H])N([H])[H])=O
InChi Key
ZPYDGLGSAUHERM-UHFFFAOYSA-N
InChi Code
InChI=1S/C21H28N4O7.C2HF3O2/c22-6-8-30-10-12-32-13-11-31-9-7-23-15-3-1-2-14-18(15)21(29)25(20(14)28)16-4-5-17(26)24-19(16)27;3-2(4,5)1(6)7/h1-3,16,23H,4-13,22H2,(H,24,26,27);(H,6,7)
Chemical Name
4-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethylamino]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione;2,2,2-trifluoroacetic acid
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO :~100 mg/mL (~177.78 mM)
Ethanol :~100 mg/mL (~177.78 mM)
H2O :~16.67 mg/mL (~29.64 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (4.44 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (4.44 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (4.44 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 33.33 mg/mL (59.25 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.7778 mL 8.8890 mL 17.7781 mL
5 mM 0.3556 mL 1.7778 mL 3.5556 mL
10 mM 0.1778 mL 0.8889 mL 1.7778 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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