Br-PEG1-COOtBu
- CAS NO.：1393330-36-3
- Empirical Formula: C9H17BrO3
- Molecular Weight: 253.13
- MDL number: MFCD22574803
- Update Date: 2026-01-04 19:55:51
What is Br-PEG1-COOtBu?
Description
Bromo-PEG1-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 Br-PEG1-COOtBu
| Boiling point: | 285.0±15.0 °C(Predicted) |
| Density | 1.264±0.06 g/cm3(Predicted) |
| solubility | Soluble in DCM, Hexane |
| form | Liquid |
| color | Colorless to light yellow |
Safety information for Br-PEG1-COOtBu
| 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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P312:Call a POISON CENTER or doctor/physician if you feel unwell. P313:Get medical advice/attention. P362:Take off contaminated clothing and wash before reuse. 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. P337+P313:IF eye irritation persists: Get medical advice/attention. P405:Store locked up. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P501:Dispose of contents/container to..… |
Computed Descriptors for Br-PEG1-COOtBu
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