Tos-PEG5-CH2CO2H
- CAS NO.：2028284-73-1
- Empirical Formula: C17H26O9S
- Molecular Weight: 406.45
- MDL number: MFCD30458013
- Update Date: 2026-03-18 11:52:23
What is Tos-PEG5-CH2CO2H?
Description
Tos-PEG5-CH2CO2H 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. EDC, or HATU) to form a stable amide bond.
Properties of Tos-PEG5-CH2CO2H
| Boiling point: | 567.7±50.0 °C(Predicted) |
| Density | 1.260±0.06 g/cm3(Predicted) |
| pka | 3.39±0.10(Predicted) |
Safety information for Tos-PEG5-CH2CO2H
Computed Descriptors for Tos-PEG5-CH2CO2H
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