1. Signaling Pathways
  2. PROTAC
  3. PROTAC Linkers

PROTAC Linkers

PROTACs (Proteolysis Targeting Chimeric Molecules) are heterobifunctional protein degraders and promising targeted therapeutics candidates for cancer. The PROTAC linker connects two functional motifs of a PROTAC, a target protein binder and an E3 ligase recruiter.

The linker plays an important role in a PROTAC. The features of the linker (type, length, attachment position) can affect the formation of ligase:PROTAC:target ternary complex, resulting in influencing the efficient ubiquitination of the target protein and its ultimate degradation. The optimal lengths of the PROTAC linkers are reported varying from 12-carbon to over 20-carbon, and the commonly used linkers in the development of PROTACs are PEGs, Alkyl-Chain and Alkyl/ether.

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-134755
    Bromo-PEG9-Boc
    Bromo-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Bromo-PEG9-Boc
  • HY-141345
    S-acetyl-PEG2-Boc 1820641-93-7
    S-acetyl-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    S-acetyl-PEG2-Boc
  • HY-140493
    Biotin-PEG12-acid 1621423-14-0
    Biotin-PEG12-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Biotin-PEG12-acid
  • HY-140964
    Mal-PEG2-C2-Boc 1374666-31-5
    Mal-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Mal-PEG2-C2-Boc
  • HY-132010
    Benzyl-PEG8-azide
    Benzyl-PEG8-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. Benzyl-PEG8-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.
    Benzyl-PEG8-azide
  • HY-130446
    m-PEG9-NHS ester 1316189-13-5
    m-PEG9-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.
    m-PEG9-NHS ester
  • HY-141314
    m-PEG4-C6-phosphonic acid ethyl ester 2028281-89-0
    m-PEG4-C6-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    m-PEG4-C6-phosphonic acid ethyl ester
  • HY-141182
    TCO-C3-PEG3-C3-amine 2028288-77-7
    TCO-C3-PEG3-C3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    TCO-C3-PEG3-C3-amine
  • HY-140841
    APN-C3-PEG4-azide 2183440-32-4 98.56%
    APN-C3-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. APN-C3-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.
    APN-C3-PEG4-azide
  • HY-W096143
    NH2-PEG3 hydrochloride 92505-84-5
    NH2-PEG3 hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    NH2-PEG3 hydrochloride
  • HY-141202
    Hydroxy-PEG5-Boc 850090-09-4
    Hydroxy-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Hydroxy-PEG5-Boc
  • HY-140553
    N-Boc-N-bis-PEG5 2093154-02-8
    N-Boc-N-bis-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    N-Boc-N-bis-PEG5
  • HY-135823
    Propargyl-PEG12-bromide 2410937-34-5
    Propargyl-PEG12-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. Propargyl-PEG12-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Propargyl-PEG12-bromide
  • HY-140836
    Boc-NH-PEG4-azide 940951-99-5
    Boc-NH-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. Boc-NH-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.
    Boc-NH-PEG4-azide
  • HY-140207
    Amino-PEG36-alcohol 2718868-96-1
    Amino-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Amino-PEG36-alcohol
  • HY-140748
    BnO-PEG4-Boc 1807503-89-4 ≥98.0%
    BnO-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    BnO-PEG4-Boc
  • HY-138402
    Boc-NH-PEG15-C1-acid
    Boc-NH-PEG15-C1-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Boc-NH-PEG15-C1-acid
  • HY-141163
    TCO-PEG24-acid
    TCO-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    TCO-PEG24-acid
  • HY-141076
    N-(m-PEG4)-N'-(PEG3-Mal)-Cy5 2839527-02-3
    N-(m-PEG4)-N'-(PEG3-Mal)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    N-(m-PEG4)-N'-(PEG3-Mal)-Cy5
  • HY-130293
    Propargyl-PEG4-CH2CH2-Boc 1245823-50-0
    Propargyl-PEG4-CH2CH2-Boc is a non-cleavable ADC linker that can be used to synthesize ADC inhibitors of Galectin-3. Propargyl-PEG4-CH2CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs. Propargyl-PEG4-CH2CH2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Propargyl-PEG4-CH2CH2-Boc

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