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Azido-PEG4-Thiol is a PEG-based PROTAC linker used for synthesizing PROTAC molecules. As a click chemistry reagent, it possesses an azide group that can undergo copper-catalyzed azide-alkyne cycloaddition reactions (CuAAC) with molecules containing alkyne groups. Additionally, it can participate in strain-promoted azide-alkyne cycloaddition reactions (SPAAC) with molecules containing DBCO or BCN groups.


| Description | Azido-PEG4-Thiol is a PEG-based PROTAC linker used for synthesizing PROTAC molecules. As a click chemistry reagent, it possesses an azide group that can undergo copper-catalyzed azide-alkyne cycloaddition reactions (CuAAC) with molecules containing alkyne groups. Additionally, it can participate in strain-promoted azide-alkyne cycloaddition reactions (SPAAC) with molecules containing DBCO or BCN groups. |
| Molecular Weight | 279.36 |
| Formula | C10H21N3O4S |
| Cas No. | 2720615-82-5 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |

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