Tr-PEG3
- CAS NO.：105589-77-3
- Empirical Formula: C23H24O3
- Molecular Weight: 348.43
- MDL number: MFCD17926568
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 21:51:59
What is Tr-PEG3?
Description
Tr-PEG3 is a trityl ether protected PEG chain. The trityl ether can be removed under mildly acidic conditions or via hydrogenolysis. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media.
Biological Activity
Tr-PEG2-OH is a PROTAC linker belonging to the PEG class. Can be used to synthesize PROTAC molecules. It is also a non-cleavable ADC linker containing 2-unit PEG, which can be used to synthesize antibody drug conjugates (ADC).
in vitro
PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins. ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.
Properties of Tr-PEG3
| Boiling point: | 481.9±40.0 °C(Predicted) |
| Density | 1.127±0.06 g/cm3(Predicted) |
| pka | 14.35±0.10(Predicted) |
| form | Solid |
| color | White to off-white |
Safety information for Tr-PEG3
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral 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. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P330:Rinse mouth. P362:Take off contaminated clothing and wash before reuse. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. 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 Tr-PEG3
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