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2803338-37-4

2803338-37-4 Structure

2803338-37-4 Structure
IdentificationBack Directory
[Name]

Tos-PEG6-acid
[CAS]

2803338-37-4
[Synonyms]

Tos-PEG6-acid
1-(Tosyloxy)-3,6,9,12,15-pentaoxaoctadecan-18-oic acid
1-[(4-methylbenzenesulfonyl)oxy]-3,6,9,12,15-pentaoxaoctadecan-18-oic acid
[Molecular Formula]

C20H32O10S
[MOL File]

2803338-37-4.mol
[Molecular Weight]

464.53
Chemical PropertiesBack Directory
[Boiling point ]

604.4±55.0 °C(Predicted)
[density ]

1.227±0.06 g/cm3(Predicted)
[pka]

4.28±0.10(Predicted)
Hazard InformationBack Directory
[Uses]

Tos-PEG6-acid is a PEG linker containing a tosyl group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. HATU) to form a stable amide bond.
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