ChemicalBook--->CAS DataBase List--->1643957-24-7

1643957-24-7

1643957-24-7 Structure

1643957-24-7 Structure
IdentificationBack Directory
[Name]

Tos-PEG2-CH2CO2tBu
[CAS]

1643957-24-7
[Synonyms]

Tos-PEG1-CH2-Boc
Tos-PEG2-CH2CO2tBu
tert-Butyl 2-[2-(tosyloxy)ethoxy]acetate
Acetic acid, 2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethoxy]-, 1,1-dimethylethyl ester
[Molecular Formula]

C15H22O6S
[MDL Number]

MFCD28122953
[MOL File]

1643957-24-7.mol
[Molecular Weight]

330.4
Chemical PropertiesBack Directory
[Boiling point ]

449.0±30.0 °C(Predicted)
[density ]

1.183±0.06 g/cm3(Predicted)
[storage temp. ]

Store at Room Tem.
[Appearance]

colorless liquid
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P280-P301+P312-P302+P352-P305+P351+P338
Hazard InformationBack Directory
[Description]

Tos-PEG2-CH2CO2tBu is a PEG linker containing a t-butyl ester and a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The tosyl group is a very good leaving group for nucleophilic substitution reactions.
[Uses]

Tos-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].
[IC 50]

PEGs; Alkyl/ether
[References]

[1] Snaebjornsson MT, et al. Non-canonical functions of enzymes facilitate cross-talk between cell metabolic and regulatory pathways. Exp Mol Med. 2018 Apr 16;50(4):34. DOI:10.1038/s12276-018-0065-6
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