Bromo-PEG2-t-butyl ester
- CAS NO.：1381861-91-1
- Empirical Formula: C11H21BrO4
- Molecular Weight: 297.19
- MDL number: MFCD22574822
- Update Date: 2026-01-04 19:55:51
What is Bromo-PEG2-t-butyl ester?
Description
Bromo-PEG2-t-butyl ester is a PEG linker containing a bromide group and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The t-butyl protected carboxyl group can be deprotected under acidic conditions.
Properties of Bromo-PEG2-t-butyl ester
| Boiling point: | 332.0±22.0 °C(Predicted) |
| Density | 1.240±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| form | Liquid |
| color | Colorless to light yellow |
Safety information for Bromo-PEG2-t-butyl ester
| 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 |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. 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 Bromo-PEG2-t-butyl ester
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