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ChemicalBook--->CAS DataBase List--->1260139-70-5

1260139-70-5

1260139-70-5 Structure

1260139-70-5 Structure
IdentificationBack Directory
[Name]

Bromoacetamido-PEG4-NHS ester
[CAS]

1260139-70-5
[Synonyms]

CAS_1260139-70-5
BrCH2CONH-PEG4-NHS ester
Bromoacetamido-PEG4-NHS ester
Bromoacetamido-PEG5-NHS ester
2,5-Dioxopyrrolidin-1-yl 1-bromo-2-oxo-6,9,12,15-tetraoxa-3-azaoctadecan-18-oate
4,7,10,13-Tetraoxa-16-azaoctadecanoic acid, 18-bromo-17-oxo-, 2,5-dioxo-1-pyrrolidinyl ester
[Molecular Formula]

C17H27BrN2O9
[MDL Number]

MFCD20229159
[MOL File]

1260139-70-5.mol
[Molecular Weight]

483.31
Chemical PropertiesBack Directory
[form ]

Oil
[color ]

Colorless to light yellow
Safety DataBack Directory
[HS Code ]

2942000090
Hazard InformationBack Directory
[Description]

Bromoacetamido-PEG4-NHS ester is a PEG linker containing a bromide group and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
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