m-PEG10-alcohol, also known as Decaethylene glycol monomethyl ether, is a non-cleavable 10 unit PEG ADC linker utilized in the synthesis of antibody-drug conjugates (ADCs)[1]. Additionally, m-PEG10-alcohol serves as a PEG-based PROTAC linker, enabling its application in the synthesis of PROTACs[1].