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ChemicalBook--->CAS DataBase List--->1309666-78-1

1309666-78-1

1309666-78-1 Structure

1309666-78-1 Structure
IdentificationBack Directory
[Name]

Tos-PEG2-t-butyl ester
[CAS]

1309666-78-1
[Synonyms]

Tos-PEG2-Boc
Tos-PEG1-CH2CH2COOtBu
Tos-PEG2-t-butyl ester
tert-Butyl 3-(2-(tosyloxy)ethoxy)propanoate
[Molecular Formula]

C16H24O6S
[MDL Number]

MFCD22201525
[MOL File]

1309666-78-1.mol
[Molecular Weight]

344.42
Chemical PropertiesBack Directory
[Boiling point ]

460.6±30.0 °C(Predicted)
[density ]

1.164±0.06 g/cm3(Predicted)
[form ]

Solid
[color ]

White to off-white
Safety DataBack Directory
[Symbol(GHS) ]


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-t-butyl ester 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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