ChemicalBook--->CAS DataBase List--->169751-73-9

169751-73-9

169751-73-9 Structure

169751-73-9 Structure
IdentificationBack Directory
[Name]

Tos-PEG5-CH2CO2t-butyl ester
[CAS]

169751-73-9
[Synonyms]

Tos-PEG4-CH2-Boc
Tos-PEG4-CH2COOtBu
Tos-PEG5-CH2CO2tBu
Tos-PEG5-CH2CO2t-butyl ester
tert-butyl 2-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]acetate
2-(2-{2-[2-(Toluene-4-sulfonyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-acetic acid tert-butyl ester
3,6,9,12-Tetraoxatetradecanoic acid, 14-[[(4-methylphenyl)sulfonyl]oxy]-, 1,1-dimethylethyl ester
[Molecular Formula]

C21H34O9S
[MDL Number]

MFCD27977499
[MOL File]

169751-73-9.mol
[Molecular Weight]

462.55
Chemical PropertiesBack Directory
[Boiling point ]

550.0±50.0 °C(Predicted)
[density ]

1.163±0.06 g/cm3(Predicted)
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
Hazard InformationBack Directory
[Description]

Tos-PEG5-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.
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