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ChemicalBook--->CAS DataBase List--->133803-81-3

133803-81-3

133803-81-3 Structure

133803-81-3 Structure
IdentificationBack Directory
[Name]

Hydroxy-PEG3-t-butylester
[CAS]

133803-81-3
[Synonyms]

OH-PEG2-TBA
HO-PEG2-COOtBu
HO-PEG2-CH2CH2COOtBu
OH-PEG2-CH2CH2COOtBu
HO-PEG2-t-Butyl ester
Hydroxy-PEG2-(CH2)2-Boc
Hydroxy-PEG3-t-butylester
Hydroxy-PEG2-t-butyl ester
tert-Butyl PEG2 propanoate
PEG3-carboxylic Acid tert-Butyl Ester
tert-Butyl 9-Hydroxy-4,7-dioxanonanoate
9-Hydroxy-4,7-dioxanonanoic Acid tert-Butyl Ester
TERT-BUTYL 3-(2-(2-HYDROXYETHOXY)ETHOXY)PROPANOATE
3-[2-(2-Hydroxyethoxy)ethoxy]propanoic Acid tert-Butyl Ester
Propanoic acid, 3-[2-(2-hydroxyethoxy)ethoxy]-, 1,1-dimethylethyl ester
[Molecular Formula]

C11H22O5
[MDL Number]

MFCD20926380
[MOL File]

133803-81-3.mol
[Molecular Weight]

234.29
Chemical PropertiesBack Directory
[Boiling point ]

321.8±22.0 °C(Predicted)
[density ]

1.046±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

Soluble in DMSO
[form ]

clear liquid
[pka]

14.36±0.10(Predicted)
[color ]

Colorless to Almost colorless
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H312-H315-H319-H332-H335
[Precautionary statements ]

P261-P280-P305+P351+P338
[HS Code ]

2918999090
Hazard InformationBack Directory
[Description]

Hydroxy-PEG2-t-butyl ester is a PEG linker containing a hydroxyl group with a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl protected carboxyl group can be deprotected under acidic conditions.
[Uses]

Hydroxy-PEG2-(CH2)2-Boc is an ADC linker for the synthesis of antibody drug conjugates (ADC), Hydroxy-PEG2-(CH2)2-Boc is derived from patent WO2004008101A2 (compound 196). Hydroxy-PEG2-(CH2)2-Boc can also be used as a PROTAC linker for PROTAC synthesis. 
[in vitro]

 ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.
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