Mal-PEG2-t-butyl ester
- CAS No.
- 518044-35-4
- Chemical Name:
- Mal-PEG2-t-butyl ester
- Synonyms
- Mal-PEG3-Boc;Mal-PEG2-OtBu;Mal-PEG3-OtBu;Mal-PEG2-COOtBu;Mal-PEG3-COOtBu;MAL-PEG3-CH2CH2COOTBU;MAL-PEG2-CH2CH2COOTBU;Mal-PEG3-t-butyl ester;Mal-PEG2-t-butyl ester;tert-butyl 3-(2-{2-[2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy]ethoxy}ethoxy)propanoate
- CBNumber:
- CB83062533
- Molecular Formula:
- C17H27NO7
- Molecular Weight:
- 357.4
- MDL Number:
- MFCD23726622
- MOL File:
- 518044-35-4.mol
- MSDS File:
- SDS
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P280-P305+P351+P338 |
Mal-PEG2-t-butyl ester price More Price(21)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| ChemScene | CS-0109686 | Mal-PEG3-Boc ≥97% | 518044-35-4 | 100mg | $46 | 2026-06-04 | Buy |
| ChemScene | CS-0109686 | Mal-PEG3-Boc ≥97% | 518044-35-4 | 500mg | $100 | 2026-06-04 | Buy |
| ChemScene | CS-0109686 | Mal-PEG3-Boc ≥97% | 518044-35-4 | 1g | $160 | 2026-06-04 | Buy |
| ChemScene | CS-0109686 | Mal-PEG3-Boc ≥97% | 518044-35-4 | 5g | $660 | 2026-06-04 | Buy |
| ChemScene | CS-0109686 | Mal-PEG3-Boc ≥97% | 518044-35-4 | 250mg | $6469 | 2026-06-04 | Buy |
Mal-PEG2-t-butyl ester Chemical Properties, Uses, Production
Description
Mal-PEG3-t-butyl ester is a PEG linker containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.
Uses
Mal-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].
IC 50
PEGs; Alkyl/ether
References
[1] An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 DOI:10.1016/j.ebiom.2018.09.005
Mal-PEG2-t-butyl ester Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hunan HuaTeng Pharmaceutical Co., Ltd., | 400-8592883 15367835770 | sales@huatengsci.com | China | 5869 | 58 |
| Jinan elephant international trading co., LTD | 13006575422@163.com | China | 6347 | 58 | |
| Amatek Scientific Co. Ltd. | 0512-56316828 400-867-5858;400-867-5858 | info@amateksci.com | China | 28760 | 58 |
| Xi'an Confluore Biological Technology Co., Ltd. | +86-156-80926068 +86-15680926068 | 1924344760@qq.com | China | 4229 | 58 |
| Alpha Biopharmaceuticals Co., Ltd | 0411-39042497 | sales@alphabiopharm.com | China | 1951 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +1-00000000000 | marketing@targetmol.com | United States | 32431 | 58 |
| Nextpeptide Inc | +86-0571-81612335 +8613336028439 | sales@nextpeptide.com | China | 19904 | 58 |
| Shaanxi Xinyan Bomei Biotechnology Co., Ltd. | 13892832556 | 2440688701@qq.com | China | 1981 | 58 |
| Xiamen Sinopeg Biotech Co., Ltd. | 400-9189898 17359873007 | sales@sinopeg.com | China | 1003 | 58 |
| Ningbo Benkang jishi Pharmaceutical Technology Co., Ltd. | 15990591583 | China | 6129 | 58 |
View Latest Price from Mal-PEG2-t-butyl ester manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-05-11 | Mal-PEG3-Boc
518044-35-4
|
$32.00-48.00 | 10g | TargetMol Chemicals Inc. | |||
![]() |
2025-06-07 | Mal-PEG3-COOtBu
518044-35-4
|
1g | >98.00% | 1g | Xian confluore Biological Technology Co., Ltd. |
-

- Mal-PEG3-Boc
518044-35-4
- $32.00-48.00
- TargetMol Chemicals Inc.
-

- Mal-PEG3-COOtBu
518044-35-4
- $0.00
- >98.00%
- Xian confluore Biological Technology Co., Ltd.





