Tos-PEG3-CH2CO2tBu
- CAS NO.：882518-89-0
- Empirical Formula: C17H26O7S
- Molecular Weight: 374.45
- MDL number: MFCD27977515
- Update Date: 2025-10-14 17:27:20
What is Tos-PEG3-CH2CO2tBu?
Description
Tos-PEG3-CH2CO2tBu 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.
Properties of Tos-PEG3-CH2CO2tBu
| solubility | Soluble in DMSO, DCM, DMF |
| form | Liquid |
| color | Colorless to light yellow |
Safety information for Tos-PEG3-CH2CO2tBu
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P321:Specific treatment (see … on this label). P302+P352:IF ON SKIN: wash with plenty of soap and water. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Tos-PEG3-CH2CO2tBu
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