1. Signaling Pathways
  2. PROTAC
  3. E3 Ligase Ligand-Linker Conjugates

E3 Ligase Ligand-Linker Conjugates

E3 Ligase Ligand-Linker Conjugate, which is one part of Proteolysis Targeting Chimeric Molecules (PROTACs), incorporates a ligand for the E3 ubiquitin ligase and a linker. After linked to the ligand for target protein (such as JQ1 for BRD4 protein, Molibresib for BET protein), those conjugates can be used for constituting PROTACs that targetprotein for ubiquitination and degradation. Currently, several PROTACs have been found to show good biological activity by specifically targeting BET, estrogen receptor (ER), androgen receptor, etc. MedChemExpress (MCE) offers a wide range of high quality E3 Ligase Ligand-Linker Conjugates including von Hippel-Lindau (VHL) ligands, MDM2 ligands, Cereblon (CRBN) ligands and cIAP1 ligands conjugating with different linkers (PEGs, Alkyl-Chain, Alkyl/ether, etc.). It’s convenient and time-saving for designing and synthesizinga wide variety of novel PROTACs (ARV-825, dBET1,MT-802, etc.), which can expand the application of PROTACs in the treatment of cancer, autoimmunity, inflammation and other diseases.

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-140844
    Thalidomide-O-PEG4-azide 2380318-57-8 98.02%
    Thalidomide-O-PEG4-azide is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology. Thalidomide-O-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Thalidomide-O-PEG4-azide
  • HY-128846A
    Pomalidomide-C2-NH2 hydrochloride 2305369-00-8 99.46%
    Pomalidomide-C2-NH2 (Cereblon Ligand-Linker Conjugate 15) hydrochloride is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and a linker used in PROTAC technology.
    Pomalidomide-C2-NH2 hydrochloride
  • HY-161129
    Lenalidomide 4'-PEG2-amine dihydrochloride 2624336-88-3 98.96%
    Lenalidomide 4'-PEG2-amine dihydrochloride is the Lenalidomide-based Cereblon ligand used in the recruitment of CRBN protein. Lenalidomide 4'-PEG2-amine dihydrochloride can be connected to the ligand for protein by a linker to form PROTAC.
    Lenalidomide 4'-PEG2-amine	 dihydrochloride
  • HY-103605
    (S,R,S)-AHPC-C6-PEG3-C4-Cl 1835705-55-9
    (S,R,S)-AHPC-C6-PEG3-C4-Cl (VH032-C6-PEG3-C4-Cl) is a conjugate of ligands for E3 and 20-atom-length linker. The connector of linker is Halogen group. (S,R,S)-AHPC-C6-PEG3-C4-Cl incorporates the (S,R,S)-AHPC based VHL ligand and an alkyl/ether-based linker. (S,R,S)-AHPC-C6-PEG3-C4-Cl is capable of inducing the degradation of GFP-HaloTag7 in cell-based assays.
    (S,R,S)-AHPC-C6-PEG3-C4-Cl
  • HY-134983
    Thalidomide-Piperazine 5-fluoride 2222114-22-7
    Thalidomide-piperazine hydrochloride is a synthetic E3 ligase ligand-linker conjugate, containing a cereblon ligand based on Thalidomide (HY-14658) and one linker. Thalidomide-piperazine hydrochloride can be used in studies related to PROTAC synthesis.
    Thalidomide-Piperazine 5-fluoride
  • HY-133487B
    (S,R,S)-AHPC-C8-NH2 2341796-79-8
    (S,R,S)-AHPC-C8-NH2 (VH032-C8-NH2) is a synthesized?E3 ligase ligand-linker conjugate?that incorporates the VH032 based VHL ligand and a linker used for AKT PROTAC degrader. (S,R,S)-AHPC-C8-NH2 is XF038-164A, example 8, extracted from patent WO2019173516A1.
    (S,R,S)-AHPC-C8-NH2
  • HY-136166
    Thalidomide-NH-PEG3-propionic acid 2138440-82-9 99.63%
    Thalidomide-NH-PEG3-propionic acid is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and 3-unit PEG linker used in PROTAC technology.
    Thalidomide-NH-PEG3-propionic acid
  • HY-137537
    Pomalidomide-PEG2-azide 2267306-14-7
    Pomalidomide-PEG2-azide is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and 2-unit PEG linker used in PROTAC technology. Pomalidomide-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Pomalidomide-PEG2-azide
  • HY-112495
    VH032-PEG5-C6-Cl 1799506-06-1 99.93%
    VH032-PEG5-C6-Cl (HaloPROTAC 2) is a conjugate of ligands for E3 and 21-atom-length linker. The connector of linker is Halogen group. VH032-PEG5-C6-Cl incorporates the VH032 based VHL ligand and 5-unit PEG linker. VH032-PEG5-C6-Cl is capable of inducing the degradation of GFP-HaloTag7 in cell-based assays.
    VH032-PEG5-C6-Cl
  • HY-132208
    Pomalidomide 4'-PEG2-azide 2271036-45-2 98.03%
    Pomalidomide 4'-PEG2-azide is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and a linker used in PROTAC technology. Pomalidomide 4'-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Pomalidomide 4'-PEG2-azide
  • HY-W129872
    Thalidomide-5-CH2-NH2 hydrochloride 1010100-22-7 98.55%
    Thalidomide-5-CH2-NH2 (hydrochloride) is the Thalidomide-based cereblon ligand used in the recruitment of CRBN protein. Thalidomide-5-CH2-NH2 (hydrochloride) can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-5-CH2-NH2 hydrochloride
  • HY-169357B
    Acepromazine-1-piperazinepropanamine dihydrochloride 99.46%
    Acepromazine-1-piperazinepropanamine dihydrochloride (compound 10) is a synthesized E3 ligase ligand-linker conjugate (E3 Ligase Ligand-Linker Conjugate) that incorporates a TRIM21 ligand and a linker. Acepromazine-1-piperazinepropanamine dihydrochloride can be connected to the target protein ligand to form a PROTAC molecule, TrimTAC1 (HY-169355).
    Acepromazine-1-piperazinepropanamine dihydrochloride
  • HY-135045
    (S,R,S)-AHPC-C4-COOH 2172819-74-6
    (S,R,S)-AHPC-C4-COOH (VH032-C4-COOH) (linker 45) is a synthesized E3 ligase ligand-linker conjugate that incorporates the (S,R,S)-AHPC based VHL ligand and a linker used for EED-targeted PROTAC.
    (S,R,S)-AHPC-C4-COOH
  • HY-107438A
    Thalidomide-O-amido-C4-NH2 hydrochloride 2245697-86-1 99.79%
    Thalidomide-O-amido-C4-NH2 hydrochloride, a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker, can be used in the synthesis of PROTACs.
    Thalidomide-O-amido-C4-NH2 hydrochloride
  • HY-128832
    Nutlin-C1-amido-PEG4-C2-N3
    Nutlin-C1-amido-PEG4-C2-N3 is a synthesized E3 ligase ligand-linker conjugate that incorporates the Nutlin 3 based MDM2 ligand and 4-unit PEG linker used in PROTAC technology. Nutlin-C1-amido-PEG4-C2-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Nutlin-C1-amido-PEG4-C2-N3
  • HY-137531
    Pomalidomide-PEG1-C2-COOH 2139348-60-8 99.76%
    Pomalidomide-PEG1-C2-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and 1-unit PEG linker used in PROTAC technology.
    Pomalidomide-PEG1-C2-COOH
  • HY-138777
    Thalidomide-Propargyne-PEG2-COOH 2797619-65-7 98.73%
    Thalidomide-Propargyne-PEG2-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology. Thalidomide-Propargyne-PEG2-COOH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Thalidomide-Propargyne-PEG2-COOH
  • HY-134591
    Thalidomide-NH-PEG4-COOH 2412056-48-3
    Thalidomide-NH-PEG4-COOH is an E3 ligase ligand-linker conjugate which can be used for synthesizing dCBP-1. dCBP-1 is a potent and selective heterobifunctional degrader of p300/CBP.
    Thalidomide-NH-PEG4-COOH
  • HY-133699
    Pomalidomide-PEG4-COOH 2138440-81-8 98.0%
    Pomalidomide-PEG4-COOH is a E3 ligase ligand-linker conjugate. Pomalidomide-PEG4-COOH contains the Pomalidomide based cereblon ligand and 4-unit PEG linker used in PROTAC technology.
    Pomalidomide-PEG4-COOH
  • HY-130951
    Thalidomide-O-C6-COOH 2169266-69-5 99.29%
    Thalidomide-O-C6-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology.
    Thalidomide-O-C6-COOH
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