Mal-PEG5-t-butly ester
- CAS No.
- 518044-36-5
- Chemical Name:
- Mal-PEG5-t-butly ester
- Synonyms
- Mal-PEG4-Boc;Mal-PEG4-OtBu;Mal-PEG4-COOtBu;MAL-PEG4-CH2CH2COOTBU;Mal-PEG4-t-butyl ester;Mal-PEG5-t-butly ester;MAL-dPEG4-t-butyl ester;Maleimide tetrapolyethylene glycol tert butyl propionate;tert-butyl 1-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3,6,9,12-tetraoxapentadecan-15-oate;4,7,10,13-Tetraoxapentadecanoic acid, 15-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-, 1,1-dimethylethyl ester
- CBNumber:
- CB93049629
- Molecular Formula:
- C19H31NO8
- Molecular Weight:
- 401.45
- MDL Number:
- MFCD22683300
- MOL File:
- 518044-36-5.mol
| Product description | Number | Pack Size | Price |
| Mal-PEG4-t-butylester 98% | BP-21069 | 250mg | $350 |
| Mal-PEG4-t-butylester 98% | BP-21069 | 500mg | $490 |
| Mal-PEG4-t-butylester 98% | BP-21069 | 1g | $680 |
| MAL-PEG4-TERTBUTYL ESTER 95.00% | POL0002473 | 100MG | $761.25 |
| MAL-PEG4-TERTBUTYL ESTER 95.00% | POL0002473 | 500MG | $1155 |
| More product size | |||
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P280-P302+P352 |
| HS Code | 3404200000 |
Mal-PEG5-t-butly ester price More Price(6)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| BroadPharm | BP-21069 | Mal-PEG4-t-butylester 98% | 518044-36-5 | 250mg | $350 | 2021-12-16 | Buy |
| BroadPharm | BP-21069 | Mal-PEG4-t-butylester 98% | 518044-36-5 | 500mg | $490 | 2021-12-16 | Buy |
| BroadPharm | BP-21069 | Mal-PEG4-t-butylester 98% | 518044-36-5 | 1g | $680 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | POL0002473 | MAL-PEG4-TERTBUTYL ESTER 95.00% | 518044-36-5 | 100MG | $761.25 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | POL0002473 | MAL-PEG4-TERTBUTYL ESTER 95.00% | 518044-36-5 | 500MG | $1155 | 2021-12-16 | Buy |
Mal-PEG5-t-butly ester Chemical Properties,Uses,Production
Description
Mal-PEG4-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-PEG4-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-PEG5-t-butly ester Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32470 | 58 |
| Wuhan Borenpharm Co., Ltd | 027-65563561 18717150066 | 3207347307@qq.com | CHINA | 1238 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +8613203830695 | laboratory@coreychem.com | China | 30229 | 58 |
| XIAMEN SINOPEG BIOTECH CO., LTD. | +86-0592-7761068 +8617350879715 | changaiwei@sinopeg.com | China | 1125 | 58 |
| Nextpeptide Inc | +86-0571-81612335 +8613336028439 | sales@nextpeptide.com | China | 19908 | 58 |
| Jilin Chinese Academy of Sciences-yanshen Technology | +undefined18143011203 | info@chemextension.com | China | 42056 | 58 |
| Xian confluore Biological Technology Co., Ltd. | +86-15680926068 | 1924344760@confluore.cn | China | 2997 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 52923 | 58 | |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39927 | 58 |
| Hunan HuaTeng Pharmaceutical Co., Ltd., | 400-8592883 | sales@huatengsci.com | China | 5873 | 58 |
View Lastest Price from Mal-PEG5-t-butly ester manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2025-06-07 | Mal-PEG4-COOtBu
518044-36-5
|
US $0.00 / g | 1g | >98.00% | 1g | Xian confluore Biological Technology Co., Ltd. |
-

- Mal-PEG4-COOtBu
518044-36-5
- US $0.00 / g
- >98.00%
- Xian confluore Biological Technology Co., Ltd.





