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-130952
    Thalidomide-O-C8-COOH 2225148-51-4
    Thalidomide-O-C8-COOH is the Thalidomide-based Cereblon ligand used in the recruitment of CRBN protein. Thalidomide-O-C8-COOH (Cereblon ligand 3) can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-O-C8-COOH
  • HY-135250B
    Thalidomide-4-O-C6-NH2 hydrochloride 2245697-88-3 98.53%
    Thalidomide-4-O-C6-NH2 hydrochloride is a synthesized E3 ligase ligand-linker conjugate used in the PROTAC dTAG-13, a degrader of FKBP12F36V and BET.
    Thalidomide-4-O-C6-NH2 hydrochloride
  • HY-136166
    Thalidomide-NH-PEG3-propionic acid 2138440-82-9 99.72%
    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-137538
    Pomalidomide-PEG3-azide 2267306-15-8 98.88%
    Pomalidomide-PEG3-azide is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and 3-unit PEG linker used in PROTAC technology. Pomalidomide-PEG3-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. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.
    Pomalidomide-PEG3-azide
  • HY-103612
    Thalidomide-O-amido-C3-COOH 2308035-51-8 98.43%
    Thalidomide-O-amido-C3-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-amido-C3-COOH
  • HY-140942
    Biotin-PEG6-Thalidomide 2144775-48-2 98.51%
    Biotin-PEG6-Thalidomide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Biotin-PEG6-Thalidomide
  • HY-138782
    Thalidomide-Piperazine-PEG1-COOH 2731007-11-5 99.79%
    Thalidomide-Piperazine-PEG1-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology.
    Thalidomide-Piperazine-PEG1-COOH
  • HY-133138
    Pomalidomide-PEG1-azide 2133360-04-8
    Pomalidomide-PEG1-azide is a E3 ligase lgand-linker conjugate. Pomalidomide-PEG1-azide incorporates the Pomalidomide based cereblon ligand and a linker.?Pomalidomide-PEG1-azide?can be used to design a?PROTAC BRD4 Degrader-1 (HY-133131). Pomalidomide-PEG1-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. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.
    Pomalidomide-PEG1-azide
  • HY-131185
    Pomalidomide-amido-C3-COOH 2162120-77-4 98.22%
    Pomalidomide-amido-C3-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and a linker used in PROTAC technology.
    Pomalidomide-amido-C3-COOH
  • HY-133139
    Lenalidomide-PEG1-azide 2185795-67-7
    Lenalidomide-PEG1-azide is a E3 ligase lgand-linker conjugate. Lenalidomide-PEG1-azide incorporates the Lenalidomide based cereblon ligand and a linker.?Lenalidomide-PEG1-azide?can be used to design a PROTAC BRD4 Degrader-2 (HY-133136). Lenalidomide-PEG1-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. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.
    Lenalidomide-PEG1-azide
  • HY-W580022
    Pomalidomide-5'-PEG8-C2-COOH 2138440-78-3 98.21%
    Pomalidomide-5'-PEG8-C2-COOH is an E3 Ligase Ligand-Linker Conjugates, consisting of Pomalidomide (HY-10984) and a linker. Pomalidomide-5'-PEG8-C2-COOH can be used for synthesis of PROTACs.
    Pomalidomide-5'-PEG8-C2-COOH
  • HY-139539
    Thalidomide-5-COOH 1216805-11-6 99.97%
    Thalidomide-5-COOH is the Thalidomide-based cereblon ligand used in the recruitment of CRBN protein. Thalidomide-5-COOH can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-5-COOH
  • HY-W093272
    Thalidomide-5,6-F 1496997-41-1 99.84%
    Thalidomide-5,6-F is the Thalidomide-based cereblon ligand used in the recruitment of CRBN protein. Thalidomide-5,6-F can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-5,6-F
  • HY-141011
    Thalidomide-O-amido-PEG4-azide 2411681-89-3 99.64%
    Thalidomide-O-amido-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. Thalidomide-O-amido-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. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.
    Thalidomide-O-amido-PEG4-azide
  • 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-130683
    Lenalidomide-propargyl-C2-NH2 hydrochloride 2489242-23-9 98.04%
    Lenalidomide-propargyl-C2-NH2 hydrochloride incorporates a cereblon (CRBN) ligand for the E3 ubiquitin ligase, and a linker. Lenalidomide-propargyl-C2-NH2 hydrochloride can be used to design the PROTAC MD-224 (HY-114312). Lenalidomide-propargyl-C2-NH2 (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Lenalidomide-propargyl-C2-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. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.
    Nutlin-C1-amido-PEG4-C2-N3
  • HY-143348
    NJH-2-030 2709040-02-6 98.74%
    NJH-2-030 can be used as a covalent recruiter for FEM1B in targeted protein degradation applications.
    NJH-2-030
  • HY-138775
    Thalidomide-PEG3-COOH 2682112-08-7 98.05%
    Thalidomide-PEG3-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology.
    Thalidomide-PEG3-COOH
  • HY-131889
    Thalidomide-O-C5-acid 2087490-48-8
    Thalidomide-O-C5-acid is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology.
    Thalidomide-O-C5-acid

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