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Amino-PEG2-(CH2)3CO2H

Cat No.:V11101 Purity: ≥98%
Amino-PEG2-(CH2)3COOH is a PROTAC (PROteolysis TArgeting Chimera) linker of the PEG category, may be utilized to prepare PROTAC protein degraders.
Amino-PEG2-(CH2)3CO2H
Amino-PEG2-(CH2)3CO2H Chemical Structure CAS No.: 1263046-77-0
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
Official Supplier of:
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Product Description
Amino-PEG2-(CH2)3COOH is a PROTAC (PROteolysis TArgeting Chimera) linker of the PEG category, may be utilized to prepare PROTAC protein degraders.
Amino-PEG2-(CH2)3CO2H (CAS# 1263046-77-0) is a PEG derivative containing an amino group with a terminal carboxylic acid. Its molecular formula is C₈H₁₇NO₄ and its molecular weight is 191.23 g/mol. The hydrophilic PEG spacer increases solubility in aqueous media. This compound is a non-cleavable linker for bioconjugation. It is a PROTAC linker of the PEG category.
Biological Activity I Assay Protocols (From Reference)
Targets
As a linker, Amino-PEG2-(CH2)3CO2H does not have a traditional biological target. It is a chemical tool used in the synthesis of PROTACs and other bioconjugates. Its role is to connect two functional molecules. The amino group allows for amide bond formation, while the carboxylic acid provides another conjugation handle. The PEG spacer provides flexibility and solubility.
ln Vitro
One ligand is for an E3 ubiquitin ligase, and the other is for the target protein; these two ligands are joined by a linker to form PROTACs. The intracellular ubiquitin-proteasome system is utilized by PROTACs to specifically destroy target proteins[1].
In vitro, Amino-PEG2-(CH2)3CO2H is used as a linker in the synthesis of PROTACs. Its utility is demonstrated by the successful creation of these bifunctional molecules. The non-cleavable nature of the linker provides stability to the conjugate. The PEG spacer enhances the solubility and reduces the aggregation of the final molecule.
ln Vivo
In vivo applications of Amino-PEG2-(CH2)3CO2H are realized through the PROTACs it helps construct. These PROTACs are designed to have therapeutic effects by degrading disease-causing proteins. The linker's stability and properties influence the PROTAC's pharmacokinetics and efficacy. The compound is a research tool for developing protein degraders.
Enzyme Assay
In vitro assays for Amino-PEG2-(CH2)3CO2H typically involve confirming its structure and purity by NMR and mass spectrometry. Its reactivity, such as amide bond formation, can be demonstrated by synthesizing a small molecule conjugate and confirming the product. These protocols are for research purposes only.
Cell Assay
In vitro cell-based assays for Amino-PEG2-(CH2)3CO2H are performed on the final PROTAC, not the linker alone. Target protein degradation is assessed by Western blot in cells treated with the PROTAC. The potency of degradation (DC₅₀) and the maximum degradation (Dmax) are determined. The PROTAC's effect on cell viability can be measured using MTT or CellTiter-Glo assays. Standard cell culture conditions are used.
Animal Protocol
In vivo animal studies for Amino-PEG2-(CH2)3CO2H are conducted with the final PROTAC. Xenograft mouse models are used to evaluate antitumor efficacy if the target protein is involved in cancer. The PROTAC is administered via intraperitoneal or oral routes. Tumor growth inhibition is monitored, and pharmacodynamic studies assess target protein degradation in tumor tissues. Pharmacokinetic studies evaluate the PROTAC's exposure and half-life. All procedures must comply with institutional animal care guidelines.
ADME/Pharmacokinetics
The pharmacokinetic properties of Amino-PEG2-(CH2)3CO2H are not characterized independently. As a PEG-based linker, it contributes to the overall properties of the PROTAC, such as solubility and stability. The linker's length and hydrophilicity can impact the PROTAC's cell permeability and pharmacokinetics. The compound is for research use only.
Toxicity/Toxicokinetics
The toxicity profile of Amino-PEG2-(CH2)3CO2H is evaluated as part of the final PROTAC. The linker itself is designed to be non-toxic. The toxicity of the PROTAC is primarily determined by the target protein degradation and off-target effects. The compound is a research chemical, and its safety for human use has not been established.
References

[1]. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562.

Additional Infomation
Additional information: Amino-PEG2-(CH2)3CO2H has the CAS number 1263046-77-0. Its molecular formula is C₈H₁₇NO₄. It is a non-cleavable linker for bioconjugation. It is used in PROTAC synthesis. This product is for research use only and is not approved for clinical or therapeutic applications.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C8H17NO4
Molecular Weight
191.22488284111
Exact Mass
191.115
CAS #
1263046-77-0
Related CAS #
757186-20-2
PubChem CID
51340889
Appearance
Light yellow to yellow viscous liquid
Density
1.1±0.1 g/cm3
Boiling Point
345.8±27.0 °C at 760 mmHg
Flash Point
162.9±23.7 °C
Vapour Pressure
0.0±1.6 mmHg at 25°C
Index of Refraction
1.468
LogP
-0.99
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
9
Heavy Atom Count
13
Complexity
129
Defined Atom Stereocenter Count
0
SMILES
O(CCOCCN)CCCC(=O)O
InChi Key
CDXINNRZABLVDW-UHFFFAOYSA-N
InChi Code
InChI=1S/C8H17NO4/c9-3-5-13-7-6-12-4-1-2-8(10)11/h1-7,9H2,(H,10,11)
Chemical Name
4-[2-(2-aminoethoxy)ethoxy]butanoic 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: This product requires protection from light (avoid light exposure) during transportation and storage.
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.2296 mL 26.1479 mL 52.2958 mL
5 mM 1.0459 mL 5.2296 mL 10.4592 mL
10 mM 0.5230 mL 2.6148 mL 5.2296 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

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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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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