| | Identification | Back Directory |  | [Name] 
 Azide-PEG7-Tos
 |  | [CAS] 
 1418561-41-7
 |  | [Synonyms] 
 N3-PEG7-Tos
 Azido-PEG7-Tos
 Azido-PEG7-OTs
 Azide-PEG7-Tos
 |  | [Molecular Formula] 
 C21H35N3O9S
 |  | [MDL Number] 
 MFCD30536156
 |  | [MOL File] 
 1418561-41-7.mol
 |  | [Molecular Weight] 
 505.58
 | 
 | Hazard Information | Back Directory |  | [Description] 
 Azide-PEG7-Tos is a PEG linker containing an azide group and a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The tosyl group is a good leaving group for nucleophilic substitution reactions.
 |  | [Uses] 
 Azide-PEG7-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG7-Tos 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.
 |  | [IC 50] 
 PEGs
 |  | [References] 
 [1] An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 DOI:10.1016/j.ebiom.2018.09.005
 | 
 |  |