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Biotin-PEG-azide (MW 5000) is a PROTAC linker based on a PEG structure, utilized in the preparation of PROTACs. It contains an azide group that can undergo a copper-catalyzed azide-alkyne cycloaddition reaction (CuAAC) with molecules that have alkyne groups. Additionally, it can participate in a strain-promoted azide-alkyne cycloaddition reaction (SPAAC) with molecules containing DBCO or BCN groups.

| Description | Biotin-PEG-azide (MW 5000) is a PROTAC linker based on a PEG structure, utilized in the preparation of PROTACs. It contains an azide group that can undergo a copper-catalyzed azide-alkyne cycloaddition reaction (CuAAC) with molecules that have alkyne groups. Additionally, it can participate in a strain-promoted azide-alkyne cycloaddition reaction (SPAAC) with molecules containing DBCO or BCN groups. |
| Synonyms | 956494-20-5 |
| 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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